Merge pull request #1 from AppScale/testing

sync with main branch
changed print statements to use logging, and added logging where we see exceptions
Merge pull request #391 from shatterednirvana/add-logging-to-datastore-server

Changed print statements to use logging
AppLoadBalancer Confirmation Page
Merge remote-tracking branch 'me/testing' into testing
Merge pull request #393 from DrOctogon/testing

Fixed continue URL rebranding
changed acquire_lock to work across entity groups
reading from appscale info for db state
Merge branch 'testing' of github.com:AppScale/appscale into ds-groomer
changed logging level to INFO
Merge pull request #395 from shatterednirvana/add-logging-to-datastore-server

changed acquire_lock to work across entity groups
returning empty dict if entities is none
fixed how we get the appid for acquiring locks
removed undefined var txnid
Merge pull request #396 from shatterednirvana/add-logging-to-datastore-server

Fixed how we get appid for acquire lock
Merge branch 'testing' of github.com:AppScale/appscale into ds-groomer
fixed broken unit test
Merge pull request #397 from shatterednirvana/add-logging-to-datastore-server

fixed broken unit test
Merge branch 'testing' of github.com:AppScale/appscale into ds-groomer
added logging