Expunge notion of 'dflt' language tag from Ttopen.pm and volt2ttf.  volt2ttf simplified to let Ttopen::update() harmonize the scripts and language trees.
Expunge notion of 'dflt' language tag from Ttopen.pm and volt2ttf. 
volt2ttf simplified to let Ttopen::update() harmonize the scripts and language trees.

git-svn-id: f75843d1f2d20a890c1b7b8c44655b4ad9095f8f@892 4dbf3599-f9e3-0310-9a96-835ab5cc0019

silnrsi/font-ttf,silnrsi/font-ttf