dashboard: remove protocol from google fonts links so they work with htttps
Merge pull request #696 from joshuaconner/fix_https_googlefonts_error

dashboard: remove protocol from google fonts links so they work with https
Merge pull request #697 from unihorn/60

correctly restart etcd node after snapshotting
bump(goraft/raft): 585c58026c
Merge pull request #698 from unihorn/61

bump(goraft/raft): 585c58026c
fix(Dockerfile): debconf use noninteractive

DEBIAN_FRONTEND=noninteractive tells apt-get install to use the
noninteractive front end for debconf. This keeps the system from
attempting to interact with the user during package configuration.
Without it, debconf issues warnings like:
```
debconf: unable to initialize frontend: Dialog
debconf: (TERM is not set, so the dialog frontend is not usable.)
debconf: falling back to frontend: Readline
debconf: unable to initialize frontend: Readline
debconf: (Can't locate Term/ReadLine.pm in @INC (@INC contains:
/etc/perl /usr/local/lib/perl/5.14.2 /usr/local/share/perl/5.14.2
/usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.14 /usr/share/perl/5.14
/usr/local/lib/site_perl .) at
/usr/share/perl5/Debconf/FrontEnd/Readline.pm line 7.)
debconf: falling back to frontend: Teletype
```
Merge pull request #699 from stevecrozz/suppress-debconf-warnings

fix(Dockerfile): debconf use noninteractive
feat(server): make header-only requests work