NLPIR License Update

Adds 2015-08-05 license file. Fixes #31.

NLPIR Release and Bug fixes

• Includes NLPIR version 20150702. Fixes #25.
• Adds encoding error handling scheme options.
• Adds new word identification functions and documentation. Fixes #26.
• Makes pynlpir.get_key_words() work with multiple NLPIR return value structures. Fixes #23.
• Returns None when pos code not recognized. Fixes #20.
• Updates outdated link in tutorial. Fixes #21.

NLPIR Update

• Packages NLPIR version 20141230. Fixes #18.

NLPIR version 20140926

v0.2 includes the newest version of NLPIR, which fixes the problems with pynlpir.get_key_words. All existing issues have been fixed as well. Tests for Python 3.4 have been added as well.

• Packages NLPIR version 20140926. Restores pynlpir.get_key_words functionality. Fixes #11, #14, and #15.
• Updates part of speech map for new NLPIR version. Fixes #17.
• Fixes a typo in api.rst. Fixes #16.
• Fixes a bug involving uppercase part of speech codes. Fixes #10.
• Adds Python 3.4 test to tox and travis.
• Notes Python 3.4 support in setup.py and CONTRIBUTING.rst.
• Fixes the doubleslash unit test so that it works with the new NLPIR version.
• Adds a missing comma. Fixes #8.
• Fixes indentation in pynlpir.get_key_words.
• Adds condition for empty key word result. Fixes #9.