Merge pull request #1 from robinator/master

Early work on elastic queue gem.
change name to elastic_queue
change file name to elastic_queue.gemspec
fix merge conflict
Merge pull request #3 from robinator/master

More API additions and fixes.
remove Enumerable from results
Merge pull request #4 from robinator/master

Remove .DS_Store and fix search_type bug.
delegate some methods to WillPaginate in Results, add Percolation#in_queue?
add percolation
code style fixes
bump version number
Merge from ruth
add search to query
Merge remote-tracking branch 'upstream/master'
Small style fixes and reorganize the dynamic percolator code.