Merge pull request #3 from xronos-i-am/master

mongoid 4 fixes
Update README.md
fix history search
add rails_admin specs
fix specs and gemspec
add coveralls and gem version [ci ckip]
support for mongoid with moped 2.0.x

Moped 2.x will be dropping the Moped namespace in favor of using the BSON gem directly. You may want to version, or branch this repo, but though i'd mention it and make the commit.
compat with moped 1
Merge pull request #7 from thinkclay/patch-1

support for mongoid with moped 2.0.x
Merge branch 'master' of github.com:rs-pro/mongoid-audit

Conflicts:
	lib/mongoid-audit/rails_admin.rb
fix specs and deprecation warnings
version -> 0.3.0
fix more spec warnings
Update mongoid-audit.gemspec
bump version
gems
relax mongoid version