Added test matrix to Readme.md so a summary appears on github
Added overall build and test status
redo
Fix failure to build on Android.
Added winphone8 build test.
Merge pull request #35 from ned14/develop

Added test matrix to Readme.md so a summary appears on github
Added static analysers to CI dashboard.
Suppressed some unimportant warnings so the CI doesn't flag them.
Merge pull request #36 from ned14/develop

Add static analysers to CI dashboard, and suppress unimportant warnings