namecoin patch 1
remove some commands and files
better debug message
reduce testnet maturity requirement
remove OP_NAME_FIRSTUPDATE
reacreate nameindex.dat if it does not exist
remove some unused code
Add name_list command that lists names that belong to you. Add empty name_ecrypt, name_decrypt commands that do nothing yet.
Merge branch 'master' into namecoin

Conflicts:
	src/qt/bitcoingui.cpp
emercoin GUI + percentage patch 1. This is WIP and may not compile.
WIP2
WIP3
WIP4 - bugfixes, checks to not spend namecoin outputs in normal tx
WIP5 - can now write values larger than 520 bytes, large code refactoring
fix accepting namecoin tx to memory pool
Add simple xor encryption to name and value fields, so that antivirus will complain less about virus threats (if somebody decides to store it inside tx).
Revert "Add simple xor encryption to name and value fields, so that antivirus will complain less about virus threats (if somebody decides to store it inside tx)."

This reverts commit 53f2b3efd7ad2f880f104a2b6a4c6a81675fc98e.
fix name table not displaying names
improve error messages
fix misplaced name and value