Merge pull request #79 from agaridata/fix_must_not

Handle must_not query/filter mode with a single filter condition
mongoid support
updated mongoid models to ensure document ordering for specs
added mongoid-only and mongoid/will-paginate gemfiles
when importing in mongoid, don't load the entire collection into memory
print progress information when importing
revert config load path change
Add "timeout" and "timed_out" methods.
Merge pull request #83 from MarkMurphy/master

Add "timeout" and "timed_out" methods.
Delegate decay and boost_factor methods
Merge pull request #88 from Linuus/master

Delegate decay and boost_factor methods
Changelog update
urgent: true is deprecated
Merge pull request #80 from musicglue/feature/mongoid_support

Mongoid support
Gemfiles reorganized
Minor fixes
Mongoid support improvements and refactoring
More query-related methods refactoring
Randon fails fix attempt
More urgent deprecation fixes