Improve readme and gemspec

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

.gitignore

 Gemfile.lock
+*.gem

.travis.yml

 before_install: sudo apt-get install libicu-dev -y
 rvm:
-  - 1.8.7
-  - 1.9.2
   - 1.9.3
-  - ree
+  - 2.0.0
 notifications:
   disabled: true

README.md

-# Linguist
-We use this library at GitHub to detect blob languages, highlight code, ignore binary files, suppress generated files in diffs and generate language breakdown graphs.
+# GitLab Linguist [![build status](https://ci.gitlab.org/projects/28/status.png?ref=master)](https://ci.gitlab.org/projects/28?ref=master)
+We use this library to detect blob languages, ignore binary files, suppress generated files in diffs and generate language breakdown graphs.
 ## Features
 ### Language detection
-Linguist defines the list of all languages known to GitHub in a [yaml file](https://github.com/github/linguist/blob/master/lib/linguist/languages.yml). In order for a file to be highlighted, a language and lexer must be defined there.
+Linguist defines the list of all languages known to GitHub in a [yaml file](https://gitlab.com/gitlab-org/linguist/blob/master/lib/linguist/languages.yml). In order for a file to be highlighted, a language and lexer must be defined there.
 Most languages are detected by their file extension. This is the fastest and most common situation.
-For disambiguating between files with common extensions, we use a [Bayesian classifier](https://github.com/github/linguist/blob/master/lib/linguist/classifier.rb). For an example, this helps us tell the difference between `.h` files which could be either C, C++, or Obj-C.
+For disambiguating between files with common extensions, we use a [Bayesian classifier](https://gitlab.com/gitlab-org/linguist/blob/master/lib/linguist/classifier.rb). For an example, this helps us tell the difference between `.h` files which could be either C, C++, or Obj-C.
 In the actual GitHub app we deal with `Grit::Blob` objects. For testing, there is a simple `FileBlob` API.
@@ -21,7 +21,7 @@ Linguist::FileBlob.new("lib/linguist.rb").language.name #=> "Ruby"
 Linguist::FileBlob.new("bin/linguist").language.name #=> "Ruby"
 ```
-See [lib/linguist/language.rb](https://github.com/github/linguist/blob/master/lib/linguist/language.rb) and [lib/linguist/languages.yml](https://github.com/github/linguist/blob/master/lib/linguist/languages.yml).
+See [lib/linguist/language.rb](https://gitlab.com/gitlab-org/linguist/blob/master/lib/linguist/language.rb) and [lib/linguist/languages.yml](https://gitlab.com/gitlab-org/linguist/blob/master/lib/linguist/languages.yml).
 ### Stats
@@ -48,7 +48,7 @@ Checking other code into your git repo is a common practice. But this often infl
 Linguist::FileBlob.new("vendor/plugins/foo.rb").vendored? # => true
 ```
-See [Linguist::BlobHelper#vendored?](https://github.com/github/linguist/blob/master/lib/linguist/blob_helper.rb) and [lib/linguist/vendor.yml](https://github.com/github/linguist/blob/master/lib/linguist/vendor.yml).
+See [Linguist::BlobHelper#vendored?](https://gitlab.com/gitlab-org/linguist/blob/master/lib/linguist/blob_helper.rb) and [lib/linguist/vendor.yml](https://gitlab.com/gitlab-org/linguist/blob/master/lib/linguist/vendor.yml).
 #### Generated file detection
@@ -58,7 +58,7 @@ Not all plain text files are true source files. Generated files like minified js
 Linguist::FileBlob.new("underscore.min.js").generated? # => true
 ```
-See [Linguist::Generated#generated?](https://github.com/github/linguist/blob/master/lib/linguist/generated.rb).
+See [Linguist::Generated#generated?](https://gitlab.com/gitlab-org/linguist/blob/master/lib/linguist/generated.rb).
 ## Installation
@@ -66,24 +66,10 @@ github.com is usually running the latest version of the `github-linguist` gem th
 But for development you are going to want to checkout out the source. To get it, clone the repo and run [Bundler](http://gembundler.com/) to install its dependencies.
-    git clone https://github.com/github/linguist.git
+    git clone https://gitlab.com/gitlab-org/linguist.git
     cd linguist/
     bundle install
 To run the tests:
     bundle exec rake test
-
-## Contributing
-
-The majority of patches won't need to touch any Ruby code at all. The [master language list](https://github.com/github/linguist/blob/master/lib/linguist/languages.yml) is just a configuration file.
-
-We try to only add languages once they have some usage on GitHub, so please note in-the-wild usage examples in your pull request.
-
-Almost all bug fixes or new language additions should come with some additional code samples. Just drop them under [`samples/`](https://github.com/github/linguist/tree/master/samples) in the correct subdirectory and our test suite will automatically test them. In most cases you shouldn't need to add any new assertions.
-
-### Testing
-
-Sometimes getting the tests running can be too much work, especially if you don't have much Ruby experience. It's okay, be lazy and let our build bot [Travis](http://travis-ci.org/#!/github/linguist) run the tests for you. Just open a pull request and the bot will start cranking away.
-
-Here's our current build status, which is hopefully green: [![Build Status](https://secure.travis-ci.org/github/linguist.png?branch=master)](http://travis-ci.org/github/linguist)

github-linguist.gemspec

 Gem::Specification.new do |s|
   s.name    = 'gitlab-linguist'
   s.version = `cat VERSION`
-  s.summary = "GitHub Language detection"
-  s.authors  = "GitHub"
+  s.summary = "GitLab Language detection"
+  s.authors  = ["GitHub", 'Dmitriy Zaporozhets']
   s.homepage = "https://github.com/github/linguist"
-  s.files = Dir['lib/**/*']
+  s.files = `git ls-files lib/`.split("\n") << 'VERSION'
   s.executables << 'linguist'
   s.license = 'MIT'
   s.add_dependency 'charlock_holmes',    '~> 0.6.6'
   s.add_dependency 'escape_utils',       '~> 0.2.4'
   s.add_dependency 'mime-types',         '~> 1.19'
+
   s.add_development_dependency 'mocha'
   s.add_development_dependency 'json'
   s.add_development_dependency 'rake'