Ignore log rotate logs for git
Allowed disabling of maximum network difficulty

* New flag in config.py that will disable the network cap on vardiff
* Fixes vardiff for alt coins with low difficulty
Added flag to send the block hash into the shares table

* SOULTION_BLOCK_HASH = True will send in the block hash instead of the scrypt hash
* Default will send in the scrypt hash for backward compatibility
Added some logging if the block version is too low
Small updates to the INSTALL doc

* Added submodules for ltc_scrypt and stratum
* Very basic installation instructions
logical error
Accidentally removed the admin password from the sample config
Fix wrong shares being assigned as found block

solution should be in where clause, not in set :)
FROM_UNIXTIME rounds time to seconds, and if that same user had more that one share in that second, bug will pop out
Update DB_Mysql.py
Merge in stratum-lite branch