git: Improve git log parsing

Make the tag parsing case-insensitive and use regular expressions.

Change-Id: 16c01e4099
review post: Make the output more consistent

Review the review post subcommand and make the output a bit more consistent with
other commands. Also dropped a few funky sentences from the output, it is more
irritating than helping to see the important info. Sorry, I am boring, I know.

Change-Id: bae17f3055
init: Rename to repo init and refactor

This patch is a result of me going through the code and refactoring/rewriting it
where I fould it suitable so that the code and the output is more consistent
with the rest of the code base.

Change-Id: 014615c890
release deploy: Review and make some minor changes

Change-Id: 36bf610760
wip

Change-Id: f7694d751c
Story-Id: SF-6