add ssh keys for deployment
Making the home page fields configurable via i18n interface.

The heading, subheading, and call-to-action are now configurable.

Fixes #347
fix Berks reference
increase timeout

git submodules take a looong time to download & install
Merge pull request #348 from DavidEBest/devel-i18nhomepage

Making the home page fields configurable via i18n interface.
Merge pull request #346 from ultrasaurus/devel-ssh

add ssh keys for deployment