fix build to generate phpmd log file
phpdoc cleanup, call parent methods
move the custom styles to the Output class
add a title formatting style, phpdoc
phpdoc and supress PHPMD warning for necessary exit
try to reduce complexity
improve exception message when git command fails
Merge pull request #46 from liip/improve-error

improve exception message when git command fails
Small cleanup
Fix #38 when using the dump-commit option on a first release
Release of new version 0.9.10