[IMPROVED] Out of Order Share detection

* [ADDED] Allow findblocks to detect and fix out of order shares
* [IMPROVED] Share class extends Base class for common functions
* [IMPROVED] Added more debugging and logging output to cronjob
* [ADDED] Added various new methods to blocks, share, base classes

For an overview of errors thrown in crons, please check:

https://github.com/TheSerapher/php-mpos/wiki/Error-Codes

Fixes #759 once merged.
[FIX] Proper getTableName in Base Class
Merge pull request #760 from TheSerapher/issue-759

Issue 759