Add SSL support.
Remove debugging statement.
Harness only proxies requests when it is watching for modifications. SSL needs to default to non forced-off then.
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of https://github.com/icefex/revel
Merge branch 'master' of github.com:icefex/revel into icefex-master
Revise the SSL support implementation details

- Remove the complexity around the NoSSL parameter -- the harness can proxy SSL without a problem
- Change naming convention to Ssl from SSL.  e.g. HttpSSLKey is inconsistent with itself.
- Skip adding no-op SSL parameters to sample apps (minus booking)