Update hivex's gnulib reference

A compilation error was cropping up with 'gets' not being
found.
Add Fedora 18 build scripts
Apply Hivex build fix from Hilko

Found necessary for CentOS.
Add CentOS 6.4 test
Remove swath of duplicate code
Remove duplicate package
Correct typo
Add check for Python3 clunky Centos situation
Add help option to main RE script
Break up RE build line; add RE -h check
Fix typos
Add evaluation script
Restore bashrc tweaks to test
Fail on lack of Python 3
Clean some doc text
Add Lion build test
Catch a sqlite3 gotcha in CentOS
Include Windows repair hives
Check that Fiwalk output is readable
Check for Sqlite3