removed branch specification from travis indicator

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>
added homepage to gemspec

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>
added installation instructions

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>
version bump to 0.7

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>
Merge branch 'release/0.7'
Merge tag '0.7' into nightly

0.7