Added back Mask/Mark consensus filtering modes to Find Internal Joins.


git-svn-id: svn://svn.code.sf.net/p/staden/code/staden@3696 ba6f2710-ca9f-427c-89d3-5bf716dbc8e1
Tweaks to the shuffle pads scoring system, in particular what tables
it uses for the non-linear transforms (sinh vs log) as both have their
particular strengths and weaknesses.

The default is now to use soft-clips in the editor too for
realignment.


git-svn-id: svn://svn.code.sf.net/p/staden/code/staden@3697 ba6f2710-ca9f-427c-89d3-5bf716dbc8e1