Organized src folder structure, corrected some errors, cleaned up, and
added new sub-package for data (org.pht.datalib). Known errors and
things that need to be changed in datalib: 
Only has one entry for blood pressure (needs two). Javadocs is half
completed and might be replaced with regular comments because they suck
to make. The default path option has so far only been tested on Linux.
Probably other things.