Added compiler flags for the Java compiler via a new alias JFLAGS. Note, that unlike the other compiler flags (e.g. CFLAGS) JFLAGS are applied by changing the the alias JAVAC="$(JAVAC) $(JFLAGS)" not by adding the flags alias to each call to the given compiler in called makefiles.
Added JFLAGS entries to build paths for all OS types (empty entries).
Added '-encoding UFT8' option to JFLAGS of CYGWIN build path
Added JAVACC compiler alias set by default to 'javacc'
Added simple check for javacc compiler in the users path.
Set JAVACC compiler name to 'javacc.bat' in the case of CYGWIN builds
In prism/src/parser/Makefile and prism/src/pta/Makefile
Changed calls to javacc to instead dereference the JAVACC alias
git-svn-id: https://www.prismmodelchecker.org/svn/prism/prism/trunk@2098 bbc10eb1-c90d-0410-af57-cb519fbb1720
Luke Herbert