Simplified the Makefile.
Simplified the Makefile.

The previous Makefile was somewhat of a playground for experimentation.
This is much simpler/straightforward now.

TBR=neil.fraser@gmail.com

Review URL: https://codereview.appspot.com/7187043

git-svn-id: 2cf55447cea94972d775c94cce66c944ede0459c@595 c400ca83-b69d-9dd7-9705-49c6b8615e23

TechplexEngineer/EasyJ4FRC,kallex/blockly,carlosperate/ardublockly,TechplexEngineer/EasyJ4FRC,adrgerez/ardublockly,TechplexEngineer/EasyJ4FRC,adrgerez/ardublockly,TechplexEngineer/EasyJ4FRC,carlosperate/ardublockly,carlosperate/ardublockly,CocoMake7/CocoBlockly,adrgerez/ardublockly,CocoMake7/CocoBlockly,kallex/blockly,CocoMake7/CocoBlockly