Refactoring of parsers to avoid redundancy.
Created eval folder for parsers and evaluation code.
Deleted old references
Changed file structure for more sane handling.
updated imports
Modified many of the parsing and eval functions.

New system better reflects repo structure of QIIME and associated projects. The
new parse module has the parsers for all the methods, the eval module has the results evaluating functions that we need for graphics etc. Have updated that tests for the parsers.
Modified files to incorporate missing thing and added functionality.