Rescaled the weights of the patterns to give something more independent of...

Rescaled the weights of the patterns to give something more independent of pattern length; and make . less likely to win. Question: which should win for 14102241145-- _1xxxxxxx.   or  _XXXXXXXXXXX  -- right now, the pure X pattern will win.

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@89272 65c4cc65-6c06-0410-ace0-fbb531ad65f3