Contribution Pages - Change employer from autocomplete to select

Conflicts:
	CRM/Contribute/Form/Contribution/OnBehalfOf.php
	templates/CRM/Contribute/Form/Contribution/OnBehalfOf.tpl
Contribution Pages - Improve related employer autofill

Conflicts:
	CRM/Contribute/Form/Contribution/OnBehalfOf.php
	CRM/Core/Page/AJAX/Location.php

fix location file

reverse folder addition

fix misplaced ; in backport

backport on behalf of php aspects

fix onbehalf update

backport more of onbehalf.tpl changes

reduce changes
Merge pull request #64 from eileenmcnaughton/backport

Backport additional parts for contribution page fix ups