replica-safe => replicas-safe
Switch fetch to use a non-deprecated signature of the java driver's .find(). Fixes a bug where congo limits before sorting.
Adds support for :explain on fetch
Update readme.markdown

Happy new year!!
Merge pull request #117 from ssboisen/patch-1

It's 2013 man :-)
add background option to add-index!
Make namespaced keywords round-trippable and test that this is so
Merge pull request #120 from AdamClements/namespaced-keywords

Make namespaced keywords round-trippable
merge with aboekhoff/congomongo master
adds option to create index in background
adds background to the args list
Merge pull request #121 from dwwoelfel/master

Adds option to create index in background
- added (read-preference ..) to create ReadPreference instances
- added the facility to supply read preferences to (fetch …)
- added function to get/set a WriteConcern on a per-collection basis
- added function to get/set a ReadPreference on a per-collection basis
- added function to set a ReadPreference on a per-connection basis
Merge pull request #122 from niclasmeier/master

Support for ReadPreferences