Windows 10 / Universal Windows Platform port

[riza]

Support Windows 10 / Universal Windows Platform and continue the work for Windows Phone 8 support (#1704).

Build guide: Building for UWP & WP8

[riza]

Create new branch in r5208

[riza]

Create new branch in r5208

[riza]

In 5210:

Re #1900: Initial implementation with pjsua cli/telnet sample app.

[riza]

In 5211:

Re #1900: add missing file (pjproject-vs14-common-targets.targets).

[riza]

In 5254:

Re: #1900:

• Add new property file (pjproject-vs14-api-def.props) to define the API used
• Add ioqueue specific to uwp using winRT networking API
• Add uwp GUI sample APP using Voip architecture
• Add async activation for wasapi dev

[nanang]

In 5256:

Re #1900:

• Works on UWP socket & ioqueue.
• Media transport UDP: cancel any pending send on detach, otherwise there is possibility that send buffer is already freed by application (stream) when the send op starts.
• Ioqueue common abs: rename 'generic' as it seems to be a keyword in C++/CX, fixed #if/#endif possition in ioqueue_init_key().
• pjsua GUI app: fixed thread registration status check.

[nanang]

In 5298:

Re #1900: Various fixes in sock_uwp.cpp, mostly about error/exception handlings.

[nanang]

In 5439:

Re #1900: Fixed crash in destroying UDP socket after being initialized but not used (for sending/receiving).

[riza]

In 5470:

Re #1900:

• Modify some project files for x64 build.
• Add some files/folder to the global ignore list.
• Disable PJ_OS_HAS_CHECK_STACK as default.
• Use ip_helper_generic.c which provides implementation to pj_enum_ip_interface() and pj_enum_ip_route().

[nanang]

In 5497:

Re #1900: Updated project files for target platform version configuration, it is configurable via property sheet build/vs/pjproject-vs14-common-config.props.

[nanang]

In 5512:

Re #1900: Merged from trunk (without 3 text conflicts in sln & vcxproj).

[nanang]

In 5513:

Re #1900: More merged from trunk (r5512 mistakenly contains merged changes in third-party dir only).

[riza]

In 5514:

Re #1900: Fix merge conflict for solution file and project files. And fix some compile error found for UWP.

[nanang]

In 5515:

Re #1900: Miscelaneous updates, e.g: enable/disable WMME/WASAPI automatically based on active platform, cosmetics.

[nanang]

In 5526:

Re #1900: Misc updates, e.g: Minimal Rebuild prop, SVN ignore prop.

[riza]

In 5528:

Re #1900: Misc updates, some projects are platform specific. Prevent it from being built for the unintended platform.

[riza]

In 5529:

Re #1900: Misc updates, e.g: remove reference to wp8 gui sample app.

[nanang]

In 5532:

Re #1900: Merged changes from trunk.

[nanang]

In 5538:

Re #1900: Merged changes from trunk.

[nanang]

In 5539:

Re #1900: Reintegrated works in UWP branch to trunk.

[nanang]

In 5541:

Re #1900: Deleted dirty dir third_party/build/portaudio. The dir was copied from UWP branch (perhaps it was not deleted properly in the first sync from trunk?)

[nanang]

In 5546:

Re #1900: Updated audio device config to automatically enable WASAPI and disable WMME when PJ_WIN32_WINPHONE8 is set.

[riza]

In 5547:

Re #1900: Fixed some build error for UWP arm.