Revert "rm empty targets"

This reverts commit a6b4e75c93.

rm empty targets

Added detection and mitigation for CRCR pattern

This reverts commit 8fdcbd41cb.

This reverts commit c2c2d0df4c.

Fix build for Xcode 7.0 beta 5.

This beta has added (or at least rearranged) the SDKs to include
WatchOS.  This results in SDK_IOS_VERSION finding the WatchOS version
number (2.0) instead of the iOS SDK version number.

Fix this by rewriting the lines that handle xcodebuild to use
different logic that is more robust.

Tested on Xcode 6.4 and Xcode 7.0 beta 5.

Fixed IMAP Idle for Windows Build

select in windows cannot be used with non-sockets, use
WaitForMultipleObjects instead.

Update parameter for mailimap_has_extension and mailimap_has_authentication to use const char *

Update mailimap.c

#190  parse response

Added macro LIBETPAN_HAS_MAILIMAP_163_WORKAROUND