Release proposal: v2.0.0

This is very early but we're risking a long period of time with no release and a build-up of changes so we need to push to get this out.

Main issues for this release are in the 2.0.0 milestone. Note that the V8 upgrade still isn't in master, see #1506 for that.

• [5404cbc745] - buffer: fix copy() segfault with zero arguments (Trevor Norris) #1520
• [3d3083b91f] - buffer: little improve for Buffer.concat method (Jackson Tian) #1437
• [e67542ae17] - build: disable -Og when building with clang (Ben Noordhuis) #1609
• [78f4b038f8] - build: turn on debug-safe optimizations with -Og (Ben Noordhuis) #1569
• [a5dcff827a] - build: Use option groups in configure output (Johan Bergström) #1533
• [2a3c8c187e] - build: remove -J from test-ci (Rod Vagg) #1544
• [e6874dd0f9] - crypto: track external memory for SSL structures (Fedor Indutny) #1529
• [935c9d3fa7] - deps: make node-gyp work with io.js (cjihrig) #990
• [56e4255382] - deps: upgrade npm to 2.9.0 (Forrest L Norvell) #1573
• [509b59ea7c] - deps: enable v8 postmortem debugging again (Ben Noordhuis) #1232
• [01652c7709] - deps: upgrade v8 to 4.2.77.18 (Chris Dickinson) #1506
• [01e6632d70] - deps: upgrade v8 to 4.2.77.15 (Ben Noordhuis) #1399
• [db4ded5903] - deps: enable v8 postmortem debugging again (Ben Noordhuis) #1232
• [36cd5fb9d2] - deps: upgrade v8 to 4.2.77.13 (Ben Noordhuis) #1232
• [b3a7da1091] - deps: update http_parser to 2.5.0 (Fedor Indutny) #1517
• [dacc1fa35c] - doc: update AUTHORS list (Rod Vagg) #1586
• [2a3a1909ab] - doc: add require() lines to child.stdio example (Nick Raienko) #1504
• [02388dbf40] - doc: fix some cross-references (Alexander Gromnitsky) #1584
• [57c4cc26e2] - doc: add TC meeting 2015-04-22 minutes (Rod Vagg) #1556
• [b4ad5d7050] - doc: improve http.request and https.request opts (Roman Reiss) #1551
• [7dc8eec0a6] - doc: deprecate smalloc module (Ben Noordhuis) #1566
• [1bcdf46ca7] - doc: add TC meeting 2015-04-15 minutes (Rod Vagg) #1498
• [391cae3595] - doc: Add Known issues to v1.7.0/1.7.1 CHANGELOG (Yosuke Furukawa) #1473
• [e55fdc47a7] - doc: fix util.deprecate example (Nick Raienko) #1535
• [5178f93bc0] - doc: Add Addon API (NAN) to working group list (Julian Duque) #1523
• [f3cc50f811] - doc: add TC meeting 2015-04-08 minutes (Rod Vagg) #1497
• [bb254b533b] - doc: update branch to master (Roman Reiss) #1511
• [22aafa5597] - doc: add Fishrock123 to the TC (Jeremiah Senkpiel) #1507
• [b16a328ede] - doc: add spaces to child.kill example (Nick Raienko) #1503
• [26327757f8] - doc: update AUTHORS list (Rod Vagg) #1476
• [f9c681cf62] - fs: validate fd on fs.write (Julian Duque) #1553
• [801b47acc5] - gitignore: ignore xcode workspaces and projects (Roman Klauke) #1562
• [d5ce47e433] - (SEMVER-MINOR) lib: deprecate the smalloc module (Ben Noordhuis) #1564
• [7384ca83f9] - module: remove '' from Module.globalPaths (Chris Yip) #1488
• [b4f5898395] - net: ensure Write/ShutdownWrap references handle (Fedor Indutny) #1590
• [4abe2fa1cf] - (SEMVER-MINOR) net: add lookup option to Socket.prototype.connect (Evan Lucas) #1505
• [1bef717476] - (SEMVER-MINOR) net: cleanup connect logic (Evan Lucas) #1505
• [c7782c0af8] - node: improve nextTick performance (Brian White) #1571
• [b57cc51d8d] - (SEMVER-MAJOR) os: remove trailing slash from os.tmpdir() (Christian Tellnes) #747
• [ca219b00d1] - repl: fix for a+ fd clearing the file on read (Chris Dickinson) #1605
• [051d482b15] - repl: fix _debugger by properly proxying repl (Chris Dickinson) #1605
• [2e2fce0502] - repl: fix persistent history and env variable name (Roman Reiss) #1593
• [ea5195ccaf] - repl: do not save history for non-terminal repl (Fedor Indutny) #1575
• [0450ce7db2] - repl: add mode detection, cli persistent history (Chris Dickinson) #1513
• [279f6116aa] - src: fix -Wmissing-field-initializers warning (Ben Noordhuis) #1606
• [73062521a4] - src: deprecate smalloc public functions (Ben Noordhuis) #1565
• [ccb199af17] - src: fix deprecation warnings (Ben Noordhuis) #1565
• [609fa0de03] - src: fix NODE_DEPRECATED macro (Ben Noordhuis) #1565
• [3c92ca2b5c] - (SEMVER-MINOR) src: add ability to get/set effective uid/gid (Evan Lucas) #1536
• [30b7349176] - stream_base: dispatch reqs in the stream impl (Fedor Indutny) #1563
• [0fa6c4a6fc] - string_decoder: don't cache Buffer.isEncoding (Brian White) #1548
• [f9b226c1c1] - test: extend timeouts for ARMv6 (Rod Vagg) #1554
• [bfae8236b1] - test: fix test-net-dns-custom-lookup test assertion (Evan Lucas) #1531
• [547213913b] - test: adjust Makefile/test-ci, add to vcbuild.bat (Rod Vagg) #1530
• [550c2638c0] - tls: use SSL_set_cert_cb for async SNI/OCSP (Fedor Indutny) #1464
• [1787416376] - tls: destroy singleUse context immediately (Fedor Indutny) #1529
• [2684c902c4] - tls: zero SSL_CTX freelist for a singleUse socket (Fedor Indutny) #1529
• [2d241b3b82] - tls: destroy SSL once it is out of use (Fedor Indutny) #1529
• [f7620fb96d] - tls_wrap: Unlink TLSWrap and SecureContext objects (Сковорода Никита Андреевич) #1580
• [a7d74633f2] - tls_wrap: use localhost if options.host is empty (Guilherme Souza) #1493
• [702997c1f0] - _Revert_ "url: significantly improve the performance of the url module" (Rod Vagg) #1602
• [0daed24883] - _Revert_ "url: delete href cache on all setter code paths" (Rod Vagg) #1602
• [0f39ef4ca1] - _Revert_ "url: fix treatment of some values as non-empty" (Rod Vagg) #1602
• [66877216bd] - url: fix treatment of some values as non-empty (Petka Antonov) #1589
• [dbdd81a91b] - url: delete href cache on all setter code paths (Petka Antonov) #1589
• [3fd7fc429c] - (SEMVER-MAJOR) url: significantly improve the performance of the url module (Petka Antonov) #1561
• [bf7ac08dd0] - util: add Map and Set inspection support (Christopher Monsanto) #1471
• [30e83d2e84] - win,node-gyp: optionally allow node.exe/iojs.exe to be renamed (Bert Belder) #1266
• [3bda6cbfa4] - (SEMVER-MAJOR) win,node-gyp: enable delay-load hook by default (Bert Belder) #1433