Adds support for sha512 password hashing#899

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kapeels wants to merge 2 commits intoohmage:masterfrom

Commits on Nov 1, 2016

Adds support for sha512 password hashing
kapeels
committed

Commits on Nov 14, 2016

Added commons-codec.jar as dependency, removed the commons-codec source files. Minor change to README SQL statements.
kapeels
committed