InspIRCd: fix SHA1 and add a patch for an issue on LLVM 3.4.

This pull request fixes the following problems:

1. The release was retagged shortly after the formula update was accepted due to a configuration file problem. This caused the SHA1 hash in the formula to be wrong.
2. When Apple updated the version of LLVM included with Xcode to be based on LLVM 3.4 a problem relating to loading modules at runtime surfaced.