Fix DBS-8 : add an increment column feeder
This improvement goes further by providing a way to generate values using a ValueGenerator, with several generators available (for longs, strings and dates).
add --no-color option and change gradle build to show what's wrong in Travis build
remove possibility of setting the start date as string with a given time zone.
Merge pull request #21 from Ninja-Squad/topic/generator

Fix DBS-8 : add an increment column feeder