Add git-to-rpm changelog generation.

Signed-off-by: Robert Xu <robxu9@gmail.com>
use build_changelog while .git is still available
Add top-most commit support
Limit to 5 entries; also modify -b to guarantee 5 good entries.
Show debug info
Fix build-changelog.py -h flag interference
fixed str + int error
add preliminary git evr changelog generation
#57: do not %check packages on ARM, qemu does not support lots of test tricks
#35: added temporary condition
Merge pull request #58 from abf/mdv-scripts:35-add-git-to-rpm-changelog-generation
 #35: Add git-to-rpm changelog generation
disable changelog
Fixed build-changelog.py
rollback build.sh
Added debug info
Added @robxu9 for checking changelog
Add in newline for each query

Signed-off-by: Robert Xu <robxu9@gmail.com>
Do not show Epoch if it is "(none)".

Signed-off-by: Robert Xu <robxu9@gmail.com>
Merge pull request #59 from robxu9/mdv-scripts:master
 Attempt to fix spec EVR parsing & output (w.r.t #35)
Enable changelog