updated German translations
Fixing migration bug on MySQL 5.5

MySQL was complaining about a syntax error near "{user}}", noticing a problem with the placeholder name having curly brackets. Adding back ticks solves the issue.
More phpdoc comments
comment fix
User phpdoc comments
Add support for postgresql
Use the correct alias for the user table name
Italian translation files
Create schema.postgres.sql
Merge pull request #74 from chalist/master

Create schema.postgres.sql
Merge pull request #70 from infoitservit/master

Italian translation files
Merge pull request #67 from chris68/postgresql-support

Add support for postgresql
Merge pull request #38 from igorsantos07/patch-1

Fixing migration bug on MySQL 5.5
Merge pull request #37 from schmunk42/patch-messages-de

updated German translations
Merge pull request #63 from urmaul/master

More phpdoc comments
Merge remote-tracking branch 'upstream/master'
added composer support