We added 1 as with the lite monitor mode we persist the most recent block,
thus we request with the start height for the next block.
But that cause a problem at a DAO full mode which has lite monitor mode set
as then the block parsing would not be triggered.

We refactor it so that we take the chainHeight from the dao state
directly and add 1 at the requests.
We add a check if we are at chain tip, and if so we skip requests
and call the onParseBlockChainComplete directly.

…leted yet.

- At genesis we use the genesis height for request (not height+1)
- If wallet is not synced yet we do not call onParseBlockChainComplete (as it was before)