Build System: Makefile and fake modules to test the hierarchical build system.

Signed-off-by: Paolo Maresca <plo.maresca@gmail.com>
Merge branch 'buildsys_basic' into buildsys
Fixed build.xml and made some clean up

Made some minor changes:
 * Fixed some problems in build.xml, now it works and can launch
 * Makefiles with the -j parameter thanks to the "tn" Ant option
 * Cleaned up some rubbish in obj/ subtree
 * Added the bin/ subtree

Signed-off-by: Raffaele Aquilone <aquiloneraf@gmail.com>
Added script to setup environment

with the command "source envsetup.profile" the user can now add
useful paths and aliases to its shell environment

Signed-off-by: Raffaele Aquilone <aquiloneraf@gmail.com>
Ignore output in bin/ folder

Add local .gitignore to rule out testing applications from the repo

Signed-off-by: Raffaele Aquilone <aquiloneraf@gmail.com>