Unused parameter removed

The transport param is unused and is causing order of params ValueError.

Remove unused param from call

Remove transport param from iterativeStore
Merge pull request #754 from hoffmabc/bugfix-unusedtransportparam

Bugfix: Unused parameter removed
KBucket.getContact expects guid, not contact object.
Searches for contact among existing contacts always failed in KBucket.getContact when called from OptimizedTreeRoutingTable.addContact.
[WIP] removing pysqlcipher sources from the repo.

Travis builds are taking too long due to double installations of pysqlcipher,
the second installation which runs from pip seems to be doing fine now, if there
are any issues left in pysqlcipher we'll fix them upstream as suggested by @dionyziz
Merge pull request #755 from gubatron/bye-bye-pysqlcipher-sources

removing pysqlcipher sources from the repo.
Merge pull request #745 from freamon/bugfixes

Fix for DB writes
Remove pysqlcipher installation from Docker.
Drop pysqlcipher folder in debian package.
Merge pull request #760 from Renelvon/no_pysqlcipher

Remove pysqlcipher from the installers
Refactor and expand test_dbstore.