Added synchronous (timeout) version of GStreamer SetState()
Added GStreamer symbol to ptlib.pc fpr pkg-config
Fixed building GStreamer on Linux
Applied patch #229 PTimer cleanup and fix for PTimer::Emitter removal (possible memory leaks), thanks Valeriy V. Argunov
Applied patch #227 "Fix for PMonitoredSocketBundle::Open", thanks Valeriy V. Argunov
Applied second version of patch #229 "PTimer cleanup and fix for PTimer::Emitter removal (possible memory leaks)", thanks  Valeriy V. Argunov
More XCode project tweaks
Merged revision(s) 29468-29520 from ptlib/branches/v2_12:
Allow PChannel::Unavailable, indicating a ICMP error in UDP transmit, to be passed up when reading from a socket bundle. Also added extra trace logs.
Merged revision(s) 29521-29525 from ptlib/branches/v2_12:
Fixed bug #432 "Assertion fails when PServiceProcess can't be started."

Do not do PSystemLog output when PProcess not valid, either before construction or after destruction.
Update release version number to 2.13.1
Update version number for beta v2.13.2
Major update of build system. Now supports "out of source" builds. Also much variable/file name rationalisation.
Ignorance
Fixed various build issues recently introduced.
Fixed gstreamer start up on Linux
Fixed VisualStudio build after recent changes
Added missing make file to XCode project
Fixes and improvements to cross compile builds, especially when using same source tree for multiple platforms. Can now go make OS=blah to build for platform blah.