Fixed version detection & throttle name validation

Changes:

• Use a live check to validate throttle names (#53)
• Fixed version detection when installed from PyPI into a virtualenv (#52)
• Include install path and Python release in version info

d.save_resume fix

• Fix: Use d.save_resume to flush session
• Fix: Updated a few more places to use new command names
• start script: Use RPATH/RUNPATH as LD_LIBRARY_PATH
  (fixes rTorrent-PS runtime linking on newer systems)

New docs, Python 2.7, and rTorrent 0.9.x

• Docs: Brand new docs on readthedocs.io
• Project: Moved to GitHub
• Migration: Read the docs, take note of rtorrent-pyro.rc
• rTorrent: Removed support for anything but 0.9.2+
• Python: Removed support for 2.5 and 2.6
• rtcontrol: added --select option (-/)
• rtcontrol: added --shell option
• rtcontrol: added --modify-view option
• rtcontrol: resolve - as a viewname to the current view (needs rT-PS)
• rtcontrol: added is_multi_file field
• rtcontrol: added active for when items last had peers
• rtcontrol: added stopped field
• rtcontrol: added [ NOT … ] in conditions
• rtcontrol: added --prio action
• rtcontrol: added --anneal option for post-filters
• rtcontrol: added --exec option for raw XMLRPC commands
• rtcontrol: executing OS commands (--call and --spawn)
• rtcontrol: single item views via --from #‹hash› (# is optional)
• rtcontrol: actions with arguments (like --custom) now allow templating
• rtcontrol: added json formatter (main use case: files.raw.json)
• rtcontrol: added --json to dump items as a JSON array
• rtcontrol: added --fast-query option and config setting for query optimizer
• rtcontrol: also added new default template json for -O json
• chtor: added --regex option
• chtor: replacing {} with the torrent name in --hashed path
• mktor: added --no-cross-seed option
• mktor: -X @entropy for non-deterministic infohash
• rtxmlrpc: allow passing of binary data via @- and @filename
• rtxmlrpc: added --as-import option to call private commands
• pyrotorque: added queue manager and tree watch features
• pyroadmin: added --create-import action
• pyroadmin: added --dump-rc action
• pyroadmin: added --remove-all-rc-files option
• config.py: feature to add custom template helpers
• rtorrent config: added tagged view handling
• rtorrent config: d.timestamp.downloaded attribute (thanks @chros73)
• rtorrent config: d.data_path attribute (never empty, unlike d.base_path)
• UI: Rotate through color schemes with the ~ key
• UI: Rotate through category views using < and >
• UI: The | key updates the current category view
• UI: Show uptime and other info by pressing u
• UI: Send a manual scrape for the current item with &
• UI: Helper commands tag.add, tag.rm, and tag.show (bound to Ctrl-G)
• API: added subst templating helper
• API: connect() helper for easy interactive use
• API: added h. helper namespace to templating

A long, long time ago…

• Added rtorrent.rc include with standard PyroScope additions
  to make configuration easier
• mktor/chtor: --set can now create new namespaces, e.g. you
  can do "chtor -s rtorrent.custom.foo=bar baz.torrent"
• rtxmlrpc: Fixed unicode problem when redirecting output
• conky/rtorstat: Show free disk space on download dir's volume
• Support for rTorrent 0.8.8 (not intensively tested)
• Script to migrate a 0.8.6 syntax .rtorrent.rc to 0.8.8 syntax;
  see http://code.google.com/p/pyroscope/wiki/RtXmlRpcReference