Initial setup of project including Symfony/Console component
Add src folder to autoloading
Add gitignore and remove unwanted files from repository.
Add information about ctags suppoert
Add basic skeleton for checker.
Add PHPUnit to project.
Remove .swp files. Ignore them in .gitignore.
Setup unit testing
First steps towards implementation of Lexer and Token.
Define interface of the lexer.
Implement Lexer funcitonality and many unit tests.
Implement CommentToken class and add many unittests.
Add more documentation
Implement TranslationKeytoken
Add symfony/Filesystem component
Implement parsing of .strings files
Add methods to TranslationEntryToken to get parts of it.

- Rename TranslationKeyToken to TranslationEntryToken to get a better
  intention of what that token represents.
Add some more test files
Implementation of syntactical test of .strings files.
Add tests for key checking