Changes 'Create a Course' link to 'Create / Clone a Course'

See #846
Revert "Changes 'Create a Course' link to 'Create / Clone a Course'"

This reverts commit 46683d0a84086d80108e0b4bf587b0a8873d0fcc.

- We're not doing this on the 1.2.x branch yet
Merge branch 'master' of github.com:livinglab/openlab into 1.2.x
Adds config and admin tools for SharDB migration.

See #848
Hotfixes for SharDB migration tools. See #848
Adds db.php file for SharDB. See #848
Merge branch '1.2.x' of github.com:livinglab/openlab into 1.2.x
Force shard md5 hashes to upper case. See #848
Force shard name to upper case on migration script
Hotfixes for SharDB migration script

Some tables were too large to be loaded into memory, and so had to be skipped

Also, in order to allow multiple rewriting of tables, the built-in skip-if-
exists logic had to be cut out
Merge branch '1.2.x'