enabling jsc build in travis

[madanagopalt]

No description provided.

[codecov]

Codecov Report

Merging #2261 into _jsc will increase coverage by 4.71%.
The diff coverage is 55.55%.

@@            Coverage Diff             @@
##             _jsc    #2261      +/-   ##
==========================================
+ Coverage   69.40%   74.11%   +4.71%     
==========================================
  Files         156      156              
  Lines       25719    25720       +1     
==========================================
+ Hits        17849    19063    +1214     
+ Misses       7870     6657    -1213     

Impacted Files	Coverage Δ
src/rtScriptJSC/rtJSCMisc.cpp	79.31% <ø> (+74.18%)	⬆️
src/rtScriptJSC/rtJSCWrappers.cpp	65.23% <30.00%> (+64.63%)	⬆️
src/rtScriptJSC/rtScriptJSC.cpp	63.86% <85.71%> (+63.86%)	⬆️
src/rtScriptJSC/rtJSCBindings.cpp	77.34% <100.00%> (+77.34%)	⬆️
examples/pxScene2d/src/pxScene2d.cpp	74.25% <0.00%> (ø)
src/pxUtil.cpp	75.67% <0.00%> (+0.10%)	⬆️
src/rtHttpRequest.cpp	78.68% <0.00%> (+0.38%)	⬆️
examples/pxScene2d/src/pxResource.cpp	71.06% <0.00%> (+0.50%)	⬆️
src/rtFileDownloader.cpp	70.83% <0.00%> (+0.59%)	⬆️
src/rtValue.cpp	86.65% <0.00%> (+0.84%)	⬆️
... and 17 more

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