init
add _get_chain
add code for reorg
add get_merkle and get_header
full compatibility with electrum
Merge branch 'spv' of https://github.com/fanatid/ngcccbase
VerifiedTxDb
work with testnet
add reorg to txdb and store
p2ptrade fixes and improvements
alter table
add ChunkThread to chomanode.py
Merge branch 'spv' of https://github.com/fanatid/ngcccbase

Conflicts:
	ngcccbase/txdb.py
Merge branch 'spv' of https://github.com/fanatid/ngcccbase
added get_block_height to chromanode, + some fixes and refactoring