Removing comments referencing dangerousMacros.pm as this file was removed. Removed unrestricted load of dangerousMacros.pm from CourseScriptsDirectory. This may break existing problems that use this mechanism; there should be a different, better way to address this (probably very rare) use case.
Clean up PGalias to use uniqe ids on gifs and png files (html files done earlier)

Still need to work on the section that does these files in TeX mode.
Then 1. search for the files in likely places, not just in the same directory
     2. refactor the entire module.  there is a lot of duplicate code.
Corrected reference to dangerousMacros.pl in error messages
Removed commented-out code originally derived from dangerousMacros.pl. Removed references to dangerousMacros.pl from the documentation.
Fixed documentation and removed spurious references to dangerousMacros.pl
Fixed up HTML generation; layout of code
Cleanup HTML generation; code layout. Remove spurious references to dangerousMacros.pl. Fix POD errors.
Remove reference to dangerousMacros.pl.
Remove reference to dangerousMacros.pl.
Remove reference to dangerousMacros.pl.
Remove reference to dangerousMacros.pl.
Fixed comments to Remove reference to dangerousMacros.pl.
Merge branch 'master' of https://github.com/openwebwork/pg-dev
Merge branch 'djun'

much of this is house keeping, removing cruft.
Fix errant single quote

There was an extra single quote added when removing cruft and reformatting
Merge pull request #1 from mgage/master

added features to PGalias()
Always print solutions for instructors
Create version of pretty_print that works in tex mode.  pretty_print($r_hash, $displayMode);

pretty_print($r_hash) or pretty_print($r_hash, "HTML") will output a string  in HTML mode.  HTML mode is the default so
any other key will also output in HTML mode.

pretty_print($r_hash, "TeX") will output in TeX  mode.
Begin to handle .png and .gif files properly in tex mode

This is still broken.  .gif files are not being copied to .png files -- at least not always.
Change message for reporting broken links from htmlLink()

report both the text name for the link and the url itself (if the latter exists))