Updated README and service.py for file type check
Further optimized service.py and indentation issues
Update: txt will no longer show PDF in XML response and avoid PDF Box Conversion
Updated bytestream handler to go through file type checks
Added PostScript support using ps2txt
Optimized code implementation and reorganized code structure
Merge pull request #4 from assaultarmor/master

Merged into experimental for testing
Removed redundant Util class initializations
Removed type check when printing xml localtions
Created single method for redundant location printing
Minor edits
Fix minor bug in calling super class