It integrates part of the work done by "es-make" project from ETH (mainly on the checker script)
This is a first step in rewriting the previous $EIFFEL_SRC/scripts/*.eant scripts to build 'ec' and make a new delivery.
Added a few standalone geant scripts in the EiffelStudio's source code, to ease the compilation.
git-svn-id: https://svn.origo.ethz.ch/eiffelstudio/trunk/Src/library/cURL@71410 8089f293-4706-0410-a29e-feb5c42a2edf