Use ruby 1.8 syntax for hashes
Update README.rdoc

fix travis-ci image url
Merge pull request #540 from lucianosousa/patch-2

Update README.rdoc
Merge pull request #538 from AbleTech/feature/fix_ruby_1.8.7_failures

Use ruby 1.8 syntax for hashes
Add railtie rescue_responses (Issue #492)
Need action_dispatch railtie for rescue_responses
Fix rescue responses for rails 3.0 and 3.1
Merge pull request #542 from leifcr/active_record_rescue_responses

Add active record rescue responses
More accurate match, "system.*" is a reserved collection namespace
Merge pull request #543 from banyan/more-accurate-reserved-name

More accurate match, "system.*" is a reserved collection namespace
Clarify that Rails 4 support is only in the beta, add example Gemfile entry for beta
Merge pull request #545 from KristineHines/patch-1

Clarify that Rails 4 support is only in the beta, add example Gemfile en...
Merge branch 'master' of github.com:jnunemaker/mongomapper