remove epoche from version for changes file
merge patch for encoding error from seahawk1986/master
nicer output of dch call
add new config option 'download_only'
add new option: only_newer
add new option "increment_value"

it's meant to be 1, get be set to an integer
will be added to the build_number, so be carful
with negative numbers :)
(read: it's made for "experts", read and understand the source)
Merge pull request #2 from flensrocker/master

some new options: download_only and only_newer and increment_value