* use SQLCipher
* pass database key via options, use local direct-sqlcipher and sqlcipher-simple
* update stack.yaml
* use dependencies in git
* update sqlcipher dependencies
* use TCP keep-alive instead of SMP protocol PING
* update header files
* use CInt
* use Int again
* use network-3.1.2.7
* use https in cabal.project
* confitional keep-alive parameters to work on mac
* pass keep-alive opts via client/agent options
* remove space