removed mysql
removed mysql from appscale
Removed DIST which is already set in build.
Moved install_functions so it's called after $APPSCALE_HOME is defined.
Fix so that a 2nd install attempt on the same VM will succeed
Using random ids for keys of entities on datastore tests and code cleanup.
Fixed a missing catch of concurrent exception handling on gets
tossing correct exceptions to fix app inventor
Merge pull request #509 from nlake44/trans-fix

Trans fix
Merge branch 'testing' of github.com:AppScale/appscale into apichecker-txn-error
moved cassandra to /opt so that we can mount ephemeral or persistent disks htere
moving zookeeper data to /opt so that we can mount ephemeral or persistent disks
Merge pull request #511 from shatterednirvana/move-data-directory

moved cassandra to /opt so that we can mount ephemeral or persistent disks
Merge remote-tracking branch 'org/testing' into move-zookeeper-data-location
Merge pull request #512 from shatterednirvana/move-zookeeper-data-location

Move zookeeper data location
Fixed checking of datastore API
fixed typo
Merge pull request #507 from nlake44/apichecker-txn-error

Using random ids for keys of entities on datastore tests and code cleanu...
removed unused arg
removed prints
Merge pull request #487 from nlake44/no-mysql

Removing MySQL from build and core code