Added test for index:list command.
- Fix for issue #95 customer:create enforces password with at least one digit for frontend customers
- Made util parameter helper compatible with upcoming symfony 2.3
- Added new tests for customer and database commands.
Added new tests and bumped version for next release.
Added new tests for database commands and maintenance command.
Updated changelog.
Fixed typo.
Fixed typo.

[ci skip]
Force travis to checkout the source over git,svm etc. and not to download tarballs. So i hope we can minimize issues with github storage server.
Changed travis status image to point only to master branch.
Updated composer packages.
Removed check for firstname -> Column could be truncated.
Fixed warning in cron history command.
Created phars for new version 1.59.0