v1.22

Changes Version 1.22
Enhancements:

• Added Vmatrix environment
• Added the -e commandline option to utftex:
  the --end-options/-e option ends the commandline option parser such that all subsequent arguments are interpreted as equation input. The reason for this option is that for example utftex '-\frac{1}{x}' fails with "invalid option -- '\\'", i.e. equations cannot start with a minus sign. To fix this do utftex -e '-\frac{1}{x}'.

Bugfixes:

• various small fixes
• This version also fixes the issue reported by JannesAlthoff where various valid latex
  constructs failed, things like:
  \frac1\alpha
  \frac {1}{\alpha}