Remove a Python 2.7 dependency from flashproxy-reg-appspot.

The error was:
Failed to get external IP address: PinHTTPSConnection instance has no attribute 'source_address'
The documentation for httplib says this member was added in Python 2.7.

I discovered the problem while testing the 3.x pluggable transports
bundles for Mac OS X. Because of the way M2Crypto is cross-compiled,
running the flashproxy client programs requires Python 2.6. Failure to
run flashproxy-reg-appspot means that the slower flashproxy-reg-email
would be used instead.
portmap seems to be rpcbind now.

# apt-get remove portmap
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'rpcbind' instead of 'portmap'
a2ensite insisted on having the ".conf".

# a2ensite fp-facilitator
ERROR: Site fp-facilitator does not exist!
# a2ensite fp-facilitator.conf
Enabling site fp-facilitator.conf.
To activate the new configuration, you need to run:
  service apache2 reload
mention the need to set RUN_DAEMON=yes
need to install a webserver for auto-detection of cgibindir
example apache config: Only log errors by default, to protect sensitive information.
reg-email fixes:
- output line number instead of sensitive info in error message
- set default_imap_host back to gmail for simplicity, with a TODO for future enhancements
- rm obsolete email options from help text and initscript
rename relays to facilitator-relays and integrate it into the install process
safe logging is appropriate for most cases, not just high-risk
FP_FACILITATOR can contain a base path too
merge appengine/README into config.go, mention --no_cookies and testing on a separate machine
anchor path for manual import so `make distcheck` works
split name-resolution behaviour out of parse_addr_spec to match flashproxy-common
- keep named relays as names rather than numeric addresses
auto-mkdir directories used by the initscripts
- fix minor typo via pylint
add a pylint phony target for the facilitator too
rm unused imports
drop obsolete form of sha1 module and use with-syntax for locks
Merge branch 'fac-build'

Conflicts:
	facilitator/doc/facilitator-howto.txt