Resolve issue https://github.com/cjlee112/spnet/issues/68
added error message RE: failure to connect to default db
Merge pull request #74 from shwei/master

Resolve issue https://github.com/cjlee112/spnet/issues/68
added short summary of ways to contribute
Merge remote-tracking branch 'remotes/origin/master'
added convenience scripts for running spnet web server with explicit memory usage limit and auto-restart
added script for polling G+ updates as separate process
switched data.json to mongodb/access.json
Merge remote-tracking branch 'remotes/spnet/master'
do not include cp.conf in .gitignore, confusing for production server VC