Added simple example to simulate while loop.
JIT support added. FIXME: tests/example4.cspc causes a core dump in the translated version of this VM
Factored out everything to do with parsing to clean up the interpreter module
Removed redundant \t character from pretty printer
Removed quote marks from variable names
Fixed a number of out-of-order errors in this bytecode example; removed quote marks from variable names
Improved runtime debug output