* v2.9.1 bugfix release declate missing variable

* fixed limit variable ordering in the comments

* Expand readme on autoreconnect and multipe connections usage

* update release numbers

* update copyright years

* Bug #623:  Mistake in Regexp

* Fix for #554 Fixing Join usage with 'USING' instead of 'ON'

* Fix empty exception message

* fix a typo

* Added LIKE case description into readme

* do not reset connection name when transtation is on

* 2.9 release

* Fixed groupBy with saces in field declaration

Sometimes you have to use GROUP BY in SQL with Spaces in it. The old implementation deleted all spaces in $groupByField
Eg "IF(qv.idValue IS NULL, UUID(), qv.idValue)" would become "IF(qv.idValueISNULL,UUID(),qv.idValue)"

* Addes operators <>=! to groupBy

Some small grammar/spelling changes.

So the Markdown compiler understands the titles.

updated readme

* fix a typo

* fixed limit variable ordering in the comments

* Expand readme on autoreconnect and multipe connections usage

* update release numbers

* update copyright years

* Bug #623:  Mistake in Regexp

* Fix for #554 Fixing Join usage with 'USING' instead of 'ON'

* Fix empty exception message

* Update MysqliDb.php

Added option for LOAD DATA LOCAL

* Update readme.

dbObject has a switch case in line 644 : written as ";" .

* fixed limit variable ordering in the comments

* Expand readme on autoreconnect and multipe connections usage

* update release numbers

* update copyright years

* fixed limit variable ordering in the comments

* Expand readme on autoreconnect and multipe connections usage

- Fixed damaged headlines where spaces were missing

* Reconnect to the MySQL server while preparing/unprepared query if the connection was lost (errno 2006)

* limit auto reconnecting attempts

* update stmt while autoreconnecting

* reset auto reconnect counter; some refactoring

* muliple mysqli connections

* addConnection at constructor

* increase vars

* remove unused connection credentials; tableExists and getSubQuery use selected connection

Remove __destructor from MysqliDb

Fix issue where orderBy strips spaces from fieldname

Allow garbage collection to close mysqli instance connection, instead of closing it in the destructor.

Adding ORDER BY REGEXP possibilites

remove duplicate code example (OR clause)

add socket option to mysqlidb constructor

Added a function to disconnect from mysql server

Example of use:
$MySqliDb->orderBy('name', 'desc', '^[a-zA-Z0-9]')->orderBy('name', 'desc');
// Is going to order by name but placing those name starting with special charaters at the end

Add "hidden" columns/fields into dbObject

liberate username and password variables for dbobject use

fixed delete statement return value

Added guard check at the beginning of the method, removed name === 'hidden' (that was useless).