Implement absolute ROP loading given a static base address
added "iters" to `pwnlib.util.__all__`.
added `__all__` to `pwnlib.util.iters`.
added module `pwnlib.useragents`.
fixed doctest setup for `pwnlib.util.iters`.
added links to `itertools` aliases in `pwnlib.util.iters` documentation.
added `pwnlib.ui.more`.
`pwnlib.ui.more` now just prints the text if not in term_mode.
added bells and whistles to `pwnlib.ui.options` when in term_mode.
example showing `pwnlib.ui.options()`.
Merge branch 'absolute-rop' of https://github.com/zachriggle/pwntools into zachriggle-absolute-rop

Conflicts:
	pwnlib/util/packing.py

But also changed the rop.py a lot. I am bad at git, I know. :/
Merge branch 'zachriggle-absolute-rop'
Merge branch 'master' of github.com:Gallopsled/pwntools
added badges to README.md and changed the header
added documentation badges to README.md
fixed #73
Merge remote-tracking branch 'upstream/master'
Merge branch 'pwn-sl'