Fix NSException thrown when opening impact fast more than once.

When calling openImpact twice in a row an NSInvalidArgument 
was thrown from trying to present an active UIViewController. With this fix the isOpen is set before the functions synchronous part returns and thus preventing the double open.
Update binary
fixed enum point mistake
Merge pull request #1 from scopely/enum-pointer

fixed enum point mistake
Null checks for CURRENT_ACTIVITY
Updated JAR files
Create skip label even when allowskipvideoinseconds is 0
Update binaries
Allow nil values to unset webview parameters
Update binaries
Null checks for close runner
Update JAR
Update Burstly Android adaptor
Allow app sheet to open on any orientation
Update binary
set values to save defaults to avoid putting nil in a dictionary and causing an exception down stream
Merge pull request #4 from scopely/nil-check

Avoid putting nil to dictionarys
Merge master