Updates to Jpylyzer

The following issues have been resolved:
1. Error handling for no or invalid command-line arguments/path(s)
2. XML output format changed to UTF-8
3. Valid XML in case of multiple files i.e. analysis of each file is output as Jpylyzer analyzes
4. Wrapper or -w option for wrapping xml output 
5. Recursive scanning errors 
6. Recursive scanning with wildcards