Merge pull request #1 from pvolyntsev/master

Added option 'compilerOutputFormatting' - now compress output CSS files is available
Update .gitignore, add "vendor", "composer.lock", temporary file
Fix typo in the README
Small style updates according to PSR-2
Allow to register and publish compiled CSS files inside specific
published directory
Change default value of the "writableDirectoryPermissions" from 0644 to
0777. Should prevent permission errors on some Linux servers.
Fix returning URL from the publishInside() method
Force recompilation if compilerOutputFormatting setting is changed
Update publishInside() method, copy compiled CSS file to the public
directory only if target file doesn't exist or has different
modification time
Update README, add changelog, resources
Fix date in the changelog
fix classnames
fix compiler classname and formatters
add constants
Add a unit test to check integration with scssphp compiler
Merge pull request #3 from alexdevid/master

fix compiler classname and formatters
Add SassHandler::OUTPUT_FORMATTING_SIMPLE constant for the backward compatibility
Fix date in the changelog
Update compilerOutputFormatting value in the unit test
Code style and typo fixes