Merge pull request #11 from mohammadsamir/master

Implementation for an issue #10 'Interactive mysql interpreter'
Implementation for an issue #12
Fix for an issue #13
Minor code enhancement 'call clean method when KeyboardInterrupt'
Implementation for an issue #14
Moved file_handler.py, info.py and shell_handler.py to core/libs
Fixed a minor bug
Fix for an issue #15
Enhanced the interactive mysql interpreter with input flags