Change for Java 1.7 fix. Includes:
- updated aspectJ refereence in droid-parent pom - now v1.7.2
- updated signature files
- corrections to character encoding in Help
- updated version references in Help FAQ and txt file.
- amended droid.sh file to remove Windows style line endings (which cause "Bad Interpreter" error on Linux/Mac OS X.
Updated tests which referred to the default signature files for the last release to refer instead to the new default signature files for this one.   Removed the previous default signature files.  Tests which refer to older signature file versions are unchanged.
Updated tests - for latest signature files