Lock version of bson to maintain Ruby 1.9.2 support
Moved some gems to the development group
Add bson definition to Gemfile.base instead
Better error messages for non-writeable lock/sockfile path
Merge pull request #196 from tildeio/better-sockfile-error

Better error messages for non-writeable lock/sockfile path
Organize normalizers
More normalizer reorganization
Added initial ActiveSupport::Cache support
Merge pull request #197 from tildeio/cache-support

Added initial ActiveSupport::Cache support