PyThread_get_thread_ident returns unsigned long in Python 3.7 and lon…

…g in older versions

Ice v3.7.1

Fix ICE-8579 - PHP 5.3 build failure with GCC 6

ICE-8496 - Python crash on exit

Fixed generated code warnings showing up with Objective-C and Xcode 9…

….0 (ICE-8540)

Fixed generated code warnings showing up with Objective-C and Xcode 9…

….0 (ICE-8540)

Added entry for Windows bindist

ICE-8378 - cloneWithPrefix cause System.IO.IOException: with IceBox a…

…nd Ice.FileLog

Fix for Glacier2 es5 & workers

Updated Gradle version for Android to 4.0.1