Update various FIPS codes
Merge pull request #28 from maxmind/bz/upd-fips-20140501

Update various FIPS codes
Prepare for 1.6.1
Update readme
Add pread.[ch] to our dist files
Merge pull request #30 from maxmind/bz/add-pread-files

Add pread.[ch] to our dist files
Prepare for 1.6.2
Update incorrect license information