Compile native modules on Travis using clang-3.3
Compile native modules on Travis using clang-3.3

All the native modules we ship with Atom are compiled by dynamically
linking the libstdc++ library. Using gcc (and g++) > 4.6 to compile
them, however, requires a newer version of that library, which is not
installed by default on Ubuntu Precise (Travis default image) and thus
causing all the third-party packages built via Travis to fail when using
Atom 1.11-beta.

By using clang-3.3 we can keep backwards compatibility with previous
versions of libstdc++ and still be able to compile C++11 code (which is
mandatory for Node >= 4).

sotayamashita/atom,AlexxNica/atom,bolinfest/atom,kevinrenaers/atom,kevinrenaers/atom,t9md/atom,Mokolea/atom,bsmr-x-script/atom,xream/atom,Ingramz/atom,stinsonga/atom,brumm/atom,brettle/atom,Arcanemagus/atom,ardeshirj/atom,me-benni/atom,brumm/atom,Ingramz/atom,brettle/atom,AdrianVovk/substance-ide,me-benni/atom,decaffeinate-examples/atom,bsmr-x-script/atom,CraZySacX/atom,brumm/atom,liuderchi/atom,liuderchi/atom,stinsonga/atom,AdrianVovk/substance-ide,brettle/atom,rlugojr/atom,tjkr/atom,Ingramz/atom,rlugojr/atom,t9md/atom,Arcanemagus/atom,CraZySacX/atom,AdrianVovk/substance-ide,atom/atom,decaffeinate-examples/atom,rlugojr/atom,PKRoma/atom,ardeshirj/atom,andrewleverette/atom,atom/atom,xream/atom,CraZySacX/atom,FIT-CSE2410-A-Bombs/atom,Arcanemagus/atom,AlexxNica/atom,ardeshirj/atom,sotayamashita/atom,decaffeinate-examples/atom,xream/atom,tjkr/atom,t9md/atom,liuderchi/atom,AlexxNica/atom,me-benni/atom,tjkr/atom,PKRoma/atom,stinsonga/atom,FIT-CSE2410-A-Bombs/atom,bsmr-x-script/atom,atom/atom,liuderchi/atom,stinsonga/atom,PKRoma/atom,andrewleverette/atom,bolinfest/atom,andrewleverette/atom,sotayamashita/atom,bolinfest/atom,decaffeinate-examples/atom,kevinrenaers/atom,Mokolea/atom,Mokolea/atom,FIT-CSE2410-A-Bombs/atom