Merge pull request #4 from biojava/master

update to latest master branch
making access methods to inputstreams public, so the code to fetch the
files from the file system can be re-used
updating to latest branch.

MMergeerge branch 'master' of ssh://github.com/andreasprlic/biojava
Merge pull request #24 from andreasprlic/master

Making access methods to InputStreams public
Merge pull request #26 from aalhossary/master

update to latest master branch
Accept lower-case amino acid single-letter codes.
Accept lower-case amino acid single-letter codes.
less verbose
making inpustream access method public
Merge branch 'master' of github.com:andreasprlic/biojava
Merge branch 'master' of github.com:biojava/biojava
Removing hard-coded PDB_DIR settings.

Add them to your default VM arguments instead, a la
    -DPDB_DIR=/tmp/pdb
    -DPDB_CACHE_DIR=/tmp/pdb