New gjslint linter
group linter by lang
Merge pull request #234 from AtomLinter/group_linters

group linter by lang
Update README.md
Update README.md
Added links to Elixir and Erlang linter plugins
Merge pull request #246 from JonGretar/patch-1

Added links to Elixir and Erlang linter plugins
Fix test
Stop using deprecated functions
:bug: Fix exception when closing tab

When tab was closed, sometimes exception "This TextEditor has been
destroyed" is thrown. It happens when @editor is destroyed and we try to
call @editor.markBufferRange method.
Merge pull request #253 from d4rkr00t/fix-texteditor-is-destroyed

:bug: Fix exception when closing tab
provide file as errorStream
Merge pull request #256 from AtomLinter/load_report_from_file

provide file as errorStream
Update CHANGELOG.md
Update README.md
Only warn about timeouts when they happen

Test Plan:
Turned on lintDebug and saw that these spurious warnings were no longer
present.
:memo: update changelog
Prepare 0.7.4 release
Add enum to the config, change default config :tada: