Remove Incompatible Regex Patterns

[wbond]

The following languages need to be improved to remove regex patterns that cause us to hit the Oniguruma library:

• [x] AppleScript #4156
• [ ] Clojure
• [x] D
• [x] Erlang
• [ ] Groovy
• [x] Java
• [x] LaTeX (in progress at #370)
• [x] Lua
• [x] Makefile
• [x] Markdown
• [x] Matlab
• [ ] OCaml
• [x] Perl
• [x] Python (minor)
• [x] Scala
• [x] ShellScript (see #434)
• [ ] Textile (minor)

As noted above, some are minor tweaks, while others probably need a major overhaul.