Added a test that documents that negative numbers are not clipped by cv::saturate_cast
fixing eclipse import errors that can also be fixed via 'Fix Project Properties' menu
Merge pull request #476 from apavlenko:eclipse_import_fix
fix performance issue of gpu reduction
Build info output for all android apps added.

OpenCV build information output to logcat added to OpenCV initialization code;
Documenation for cv::getBuildInformation() added.
removed libstdc++ dependency
Merge pull request #468 from kirill-kornyakov:test-for-saturate-cast
Merge pull request #478 from jet47:gpu-reduction-fix
Merge pull request #477 from asmorkalov:android_version_info
Fix warnings from ffmpeg wrapper
Merge pull request #480 from taka-no-me:ffmpeg_warnings
Detect version of clang compiler
Add OpenCL section to status report
Add separate status section for java
Use git describe to get source control version
Detect and report parallel framework used
Merge pull request #483 from taka-no-me:cmake_tweaks
add description of ddepth param of cv::boxFilter

bug #2709
Merge pull request #479 from ilya-lavrenov:TestHighGUI
Merge pull request #486 from amroamroamro:2.4