gardening

 - remove unused txn work
 - exclude tests from packaging
fix reference
sanify interactions betweens threads and processes.

 - fire up processes before starting any other threads
 - register shutdown signal handler
 - use executor.map w/o context manager
 - marvel at how the lack of isolation in python concurrency sucks

HUP, INT, TERM, and QUIT signal now attempt a gracefull shutdown of workers.
Release

 - catch and log exception for pip cache sync
 - bump version number
update the neglected changelog
make docs truer
concur tweakin
remove import
wrap line
add back in nose until we remove it properly
new stub for our namer tests
pseudo namer attr
namer and views

 - factor all view config to views.py `includeme`
 - set up resolution based on config for `namer`
 - use name in upload
 - add namer to request
namer pluggability + test
Merge pull request #2 from whitmo/pluggable-namer

Pluggable namer / concurrency tweaks