Cleaned Eclipse build target properties

- Uno and Mege2560 are now the two different build configurations
supported
- Each of this target pass relevant property to the compiler
(MEGA2560, UNO)in order to select (in pins.h) the correct pinout
definition file
(pin_xxx.h)
Added support for Arduino IDE usage

- the project can now be opened and built under Arduino IDE
1.0.x, after having performed changes detailed in README_ARDUINO_IDE.txt

- in order to achieve this goal:
* project has been renamed HaoTracker (Arduino IDE naming conventions)
* a sketch file (HaoTracker.ino) has been created from main.cpp
* includes have been fixed (usage of double-quotes instead of brackets
for sketch folder includes)
* modules have been moved to sketch folder (Arduino IDE does not allow
for subfolder includes)
* pinout definition files have been moved in pins subfolder
* main.cpp has been moved in main subfolder (not to interfer with .ino
file)
* project properties have been fixed