DRAMSys unit tests.

- Build test improved to used a temp dir which is removed after the test.
- New test: Run dramSys without arguments.
- Tests are totally independent.
- New utility functions to get data from config/specs XML files.
- Unit test files will now appear in qtcreator.
- Info header added to the files.

.gitignore

@@ -17,3 +17,4 @@ build*/
 *.swo
 cscope*
 DRAMSys/analyzer/scripts/__pycache__/
+*.pyc