Merge pull request #1 from mokele/FMDatabaseQueue

fix multi-threaded FMDB usage with FMDatabaseQueue
Run pod update on project.
update podspec 0.3.1
Merge branch 'master' of github.com:siuying/IGSearch
correct spec - add Cocoalumberjack dependency
Merge remote-tracking branch 'siuying/master'
add osx deployment_target