try-catch some functions that might throw
running status api's complete
version bump 0.12.801
added test js scripts from xwalk upstream
added mainpage for lib documentation
added more tests to xwalk
bluemonkey set default values
[xwalk] install js test files
create connection at startup
manager null by default
init manager in constructor
support engine coolant
version bump 0.12.802
Merge pull request #30 from tripzero/master

version bump 0.12.801