Delete Vagrantfile
Remove obsolete entries from .gitignore
Add gem versions to gemfile
Update README link
Remove unnecessary commented-out code
Add some comments
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Migrations updated schema
Update gems, switch to linux server, etc
Switch to thin for development
Switch sqlite to pg
Update database config for pg
Merge branch 'pgsql' into develop
Merge branch 'develop' into cleanup

Conflicts:
	Gemfile
	Gemfile.lock
	config/database.yml
Update gemfile.lock
Images controller comments
Pages controller comments
Project controller comments
Merge branch 'cleanup' into develop
Add polish locale as default