adding a check if the path is set to null
Merge branch 'master' of github.com:biojava/biojava
point to oracle site for javadoc
minor doc fix, CVS --> git
Merge pull request #47 from heuermh/master

minor doc fix, CVS --> git
fixing a problem caused by update to Sifts file format
adding a test case to make sure the SiftsXml parser can parse the a
Sifts file correctly
New getChains() method.
A convenience constructor that takes a URL.