search for: pr1440

Hi, Here's a patch for online demo on llvm.org that - Extends language selection to allow - A choice between clang and llvm-gcc - Entering llvm assembly directly (and uploading .ll and .bc files) - Makes handling of uploaded files binary safe (mostly for bc files) - Fixes code to produce valid xhtml 1.1 - Contains a lot of minor cleanup changes that make the patch big, sorry! Should