fixed requirements
Removed unnecessary files
Variable mturk page
Fixed hit search urls
Lowered timeout group processing tasks killing log
Added HitSearchResource
Fixed searching hits endpoint
Increased pagination size
Added more fields to HitGroupContent
Fixed typo
Fixed default value
Added migration
Cleaned up resources
Fixed requirements and mturk page default
Merge pull request #2 from maciej-gol/master

Configurable mturk instance and hits available caching
Fix deployment. Add fabfile for CentOS.
Merge remote-tracking branch 'ipeirotis/master'
Fix requirements.
Fix nginx configuration.