Rename to tex-char-count.py
Added some command-line arguments
Added evaluation for optional arguments in latex-command regex
Modified readme
Select whether to scan included files

Acked-by: Michael S. Christensen <michael.stenskjaer@gmail.com>
Move exceptions into main function
Added some documenting comments
Changed word-count function to split
Check if root and remove preamble
Handling of remove-expressions and custom exceptions