[IronPython] Updates for 1.1.2

[Michael Foord]

Hello all,

Off the top of my head the only bugfixes I can *remember* that I would 
like to see in 1.1.2 are:

* Compiled regular expression perf fix
* Further socket fixes
* Tuple hashing improvement
* PyCF_DONT_IMPLY_DEDENT (or whatever it was) support in compile
* Array objects don't have methods when clr not imported (I don't 
*think* this was addressed in 1.1.1 but may be wrong)

I'll try and look through and see if I can spot some more.

Michael