dx tool: added support to compile effect file, binary outputs are "fxo" files
prefer fx and fxh in hlsl over cg
hlsl spec updated, glslc by default does some includes now
allow tool exe paths to be set in config prior load
Merge remote-tracking branch 'zbstudio/master'
Merge remote-tracking branch 'zbstudio/master'
Merge branch 'master' of ssh://git.code.sf.net/p/estrelaeditor/code
Updated Love2d API for 0.9.0. (closes #247).