ARMORY-225 - Multisig unit tests

Upload the new blockchain to be used in C++ unit tests. Reorg occurs on
a difficulty change, not a longer chain appearing.
ARMORY-225 - Multisig unit tests

Fixed the C++ unit tests. One test appears to return incorrect values
and needs to be checked. Two others also need to have some values
checked. All three have console outputs that will eventually be removed.
some unit test fixes
some mdb fixes
extra error messages around mdb and scans
more unit test fixes
fixed ZC unit tests
fixed reorg unit tests
getting rid of useless unit test file
fix for the isInternetAvailable issue that we discussed  yesterday, and the new plug-in zip format
Merge branch 'dev' of github.com:etotheipi/BitcoinArmory into dev
Removed test code.
factored lockbox ZC in unit tests
Fix subtle wallet derivation bug.

When using BIP32, force chaincode to be found based off public key
index.
ARMORY-240 - Fixed export tx problem.
ARMORY-240 - Fixed export ledger the right way.
More Namecoin integration changes
Merge remote-tracking branch 'upstream/dev' into namecoin

Conflicts:
	ArmoryQt.py
Remove multisig/lockbox support in GUI for Namecoin