adding a new demo for how to calculate protein properties
Merge branch 'master' of github.com:biojava/biojava
Adding Spencer Bliven's pgp key
Fix #147: Atom lookups sometimes fail
Fix #148: Improve full atom names for mmCIF files

Previously, all CA atoms in all HETATM records were assumed to be calcium
and assigned the full name "CA  ". This fixes that, allowing modified
amino acids to have a proper alpha carbon.
Merge pull request #149 from sbliven/master

Core bug fixes
Merge pull request #144 from josemduarte/master

Implemented contact calculation through geometric hashing
fixing #146 according to user request
adding my public PGP key
Merge pull request #150 from josemduarte/master

Another little improvement on exception handling, #111