ensures php5.3 compatible array syntax

insertMulti implementation by using transactions

- MysqliDb::insertMulti() requires at least a table-name and
two-dimensional array containing the data-sets
- the third parameter $dataKeys can contain an array, setting|overriding
the table column names in the data-sets
- removes some unnecessary linebreaks and comments
- fixes typo
- adds insertMulti() to Readme
- adds MysqliDB::insertMulti() insertion tests
- removes whitespace changes

Adding error number to exception

More exception gets mysql error number with the second parameter:
connect()
queryUnprepared()
lock()
unlock()

Adding mysqli error number to exception in _prepareQuery method

Syncing joshcam master

Added methods for importing data (CSV, XML) and table locking

Add joinWhere, joinOrWhere

Added the loadData Method
Added a private method for executing unprepared statements

paypal changes

fixes

reword prepere() error. Fix for tableExists. Bump for 2.6 release

fixes

Adding support for mysql error codes