First commit
Gemspec
Create a DAO with a collection and connection name
Delegate DAO methods to the mongo coll
Break exception into own file
Where clause
Chaining of where clauses
Merge where clauses where possible
gt, lt, gte, lte clauses
in and nin
More where clauses
negation of queries
Travis
some and none
elem match
Add selects to query object
Basic field selects by name
Chaining of selects
Allow use of positional operator
Convenience methods to get query, update and projections