upgrade Ubuntu version to precise32, postgres to 9.1
fix locale so that Postgres creates databases in UTF-8
update references to lucid -> precise in all documentation
reshuffle install.sh to maintain separation between global setup and project-specific setup
merge updates from master, switch to django-base-v2 as base box to use within the torchbox branch
add dependencies for PIL
Merge branch 'master' into torchbox-v2 (add PIL dependencies)
enable pip download caching
Merge branch 'master' into torchbox-v2 - add pip download caching