Added SULU 2 installer shell script
Changed function composer_install_dependencies()
Added: support for PostgreSQL
Added: support for writing an test host alias into '/etc/hosts'
Changed: removed all backticks
Changed: quoted all file variables
Changed: cleanup
Changed: added cleanup function to reset terminal colors and removing
temp files
Changed: abort & cleanup
Added: catch of CTRL-C and terminal cleanup
Changed: rewritten the entire webserver check and permissions setting
cleanup
Updated: TODOs and BUGs
Fixed: bug in mysql_check()
Changed: new constant for test server name sulu.lo
Changed: TODO and BUGS
Merge pull request #69 from sulu-cmf/feature/installer-script

Merge branch feature/installer-script into develop