Remove LYR-specific name to base ISL feature.

In effect, rename lyr_base_islandora to feature_base_islandora.
Restructure and add repositesetup
Remove LYRASIS name and add acknowledgements
Add git-hooks handler

The original source for bin/git-hooks came from
  https://github.com/icefox/git-hooks
with modifications suggested by:
  http://tech.yipit.com/2011/11/16/183772396/
  http://codeinthehole.com/writing/tips-for-using-a-git-pre-commit-hook/#comment-645959940
Add pre-commit hook to test file mod dates
Remove file that shouldn't be in Git