Update README.md to include `Usage in testing and development`

See merge request !21

adds bar folder and branch-test text file to check Repository merged_to_root_ref method



See merge request !12

Add a directory containing a space in its name

needed for verifying the fix of `https://gitlab.com/gitlab-com/support-forum/issues/952` 

See merge request !11

Rename file



See merge request !10

add tests for .gitattributes custom highlighting

This depends on being in master because rugged's `.gitattributes` implementation requires the `.gitattributes` file to be on HEAD. But @stanhu mentioned that there are tests that will break if we add stuff to master in this repo.

See merge request !9

LFS object pointer.



See merge request !6

Add GitLab SVG

Added to test preview of sanitized SVG images

See merge request !5

add whitespace test file

Sorry, I did a mistake.
Git ignore empty files.
So I add a new whitespace test file.

See merge request !4

add whitespace test file.

add spaces

To test this pull request.(https://github.com/gitlabhq/gitlabhq/pull/9757)
Just add whitespaces.

See merge request !3

Add directory structure for tree_helper spec

This directory structure is needed for a testing the method flatten_tree(tree) in the TreeHelper module

See [merge request #275](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/275#note_732774)

See merge request !2

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

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

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