mq: patch naming shortcuts This adds some more options to the mq lookup routine. It allows you to use shortcuts in naming patches to push or pop. You can now use: 1) a full patch name 2) a number to indicate an offset in the series file 3) a unique substring of the patch name 4) patchname[-+]num to indicate an offset from a given patch. For case #3 substrings are allowed. qtip and qbase are aliases for the top and bottom of the applied patch queue, unless they are already in the series file as patch names.