buildmaster: Report better status information on console

Source/SourceFetcher: let the fetcher compute the checksum

enable checksum for git commits or git tags, example:
git+https://github.com/HaikuArchives/StreamRadio.git#tag=1.0.0

Merge pull request #254 from OscarL/commented_out_patches

Support commented out lines in the PATCHES section.

Fix checks for source packages again

respect --quiet flag in repository commands (#246)

setup.py: Fix installation script, add bin installer

buildmaster/tools: check for confdir, error on missing. Add tools to …

…path

define default git branch name

sample.conf: remove --get-dependencies from hp alias

--get-dependencies is on by default

Haikuporter 1.2.2