<rdar://problem/12022060>

Enable tab completion for regular expression commands.



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@178348 91177308-0d34-0410-b5e6-96231b3b80d8
Updated the code signing docs.



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@178352 91177308-0d34-0410-b5e6-96231b3b80d8