Added compiler directive for older xcode version
Merge pull request #32 from gbenvenuti/iosCompile

Added compiler directive for older xcode version
Resolves #33 reverted to use delayed vc dismissal
Merge pull request #34 from gbenvenuti/iosDelayBlock

Resolves #33 reverted to use delayed vc dismissal
Clear the timeout of previous call if needed. Fixes quick calls to this fuction