Renames sort to sorting for filter queries. Closes #119
Changes to /filter, added /filter to Sites.

added /sites/filter. better error messages for /filter. projection array of field names is now converted to snake_case properly. can have post to /filer without `filter` property.
updated gems
changed guardfile to be able to use separate spec files
fixed range request exception
Improved filter tests. Added project_ids to /sites/filter
trying to add project_ids filter to /sites/filter
All filters now have a default limit. Finished adding :project_ids filter for /sites/filter.
Bumped patch level.
updated gems
bumped to version 0.11.0
Added resque-job-stats. Modified exception_notification to email on resque errors.
bump patch version
add resque namespace; update baw-audio-tools and baw-workers gems
improved logging; updated gems
Added audio_recordings update route and action for baw-worker. Removed jbuilder gem.
updated gems
audio_recording update action now allows file_hash to be updated
fixed resque namespace
updated gems