bumped stash version to 2.12.1
preparing for 1.1 release
Lowercase emails before validating them

Email addresses are generally case-insensitive, so they should be compared in a case-agnostic form when checking identity.
Merge pull request #10 from chadburrus/patch-1

Lowercase emails before validating them
added test case for case insensitive committer email matching
added support for Stash 3.0 (changed HistoryService to CommitService)

tweaked committer name/email reject messages to use 'committer' instead of 'author' to make it more clear where the problem is (commit commiter info, not author)

bumped version 1.2