update immunization
Merge branch 'master' into update_immunization
cache fixtures in couchdb
cache fixtures fix
use _tty_out=False instead of setting specific flags
install.sh gets add-apt-repository if needed.
install.sh gets unzip if needed.
Fixed path to couchdb-lucene from the couchdb-lucene tarball
Modified the install doc to ask the user to cache pip downloaded packages.
change immunized to not_immunized
Added apt requirements for lxml pip module.
Text input config is now enabled only when the app platform is set to 'nokia/s40' or 'nokia/s60'.
further fixes in couchdb fixtures
Merge pull request #3138 from dimagi/no-tty

use _tty_out=False instead of setting specific flags
restrict non-ops superusers to only sign up for community or enterprise plans
Check for duplicates on the exchange, notify

This shouldn't happen, so it removes duplicates and notifies us if it
happens
Merge pull request #3173 from dimagi/exchange_duplicates

Check for duplicates on the exchange, notify
Move calculations in case list to feature previews
removed unnecessary logo
Merge pull request #3111 from SolDevelo/M4CHANGE_5_fix

cache fixtures in couchdb