Fixes to move crawler closer to working out of the box
 - Add needed entries to crawl.cfg.sample
 - Better error message for 'crawl fire' with no -p option
 - Added routines for base64 en/de-coding passwords
Specify field lists for all selects where we had to add a primary key
to the table. There are still some wild card selects that need to be
cleaned up, but they are on tables that already have a primary key or
not on mysql tables.
Merge branch 'devel' of github.com:ORNL-TechInt/hpss-crawler into devel