1) Improve travis build script for use outside travis.
Allow the script used for CI builds to also be used
locally in a similar manner to the CI use of the scrips
2) Add ctest compatible testing and CDASH support
Report testing and building results to
https://my.cdash.org/index.php?project=jsoncpp
NOTE: The new ctest infrastructure is not yet robust on winodws
Do no yet enable the new features for running test with ctest
on windows platform. The previous behaviors are maintainted,
but enhance test reporting from windows is not yet supported.
3) Add a cmake coverage testing option
Ensure that cmake builds on linux are tested.
Ensure that code coverage is reported.
4) Move conditional environment checking into the matrix
Avoid multiple places where conditional logic is used to
change compiler behavior. As more test environments are
created fromt the travis.yml matrix, all settings should be
obvious from that one location.
5) Tests with known regressions from the jsonchecker are suppressed
Tests that are known to pass with jsoncpp more lenient
syntax enforcement are exluded from tests in test/runjsontests.py
* http://help.appveyor.com/discussions/problems/2229-v140-not-found-on-vs2105rc
```
Done Building Project "C:\projects\jsoncpp\jsoncpp.sln" (default targets) -- FAILED.
Build FAILED.
"C:\projects\jsoncpp\jsoncpp.sln" (default target) (1) ->
"C:\projects\jsoncpp\ALL_BUILD.vcxproj.metaproj" (default target) (2) ->
"C:\projects\jsoncpp\ZERO_CHECK.vcxproj" (default target) (3) ->
(PlatformPrepareForBuild target) ->
C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V120\Microsoft.Cpp.Platform.targets(64,5): error MSB8020: The build tools for v140 (Platform Toolset = 'v140') cannot be found. To build using the v140 build tools, please install v140 build tools. Alternatively, you may upgrade to the current Visual Studio tools by selecting the Project menu or right-click the solution, and then selecting "Upgrade Solution...". [C:\projects\jsoncpp\ZERO_CHECK.vcxproj]
```
