amazon_store 6.x-2.2

amazon_store-6.x-2.2
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#1053270: Cleanup: remove preg_split for variable_del by Pancho (backport): Cleanup: for variable_del walk thru array instead of preg_split
#727800: Ability to change store name from "Amazon Store" by Pancho: Followup to fix menu rebuilding after changing store name or path
#1010484: amazon_store_item_detail.tpl.php has invalid markup by the_g_bomb, rfay: Fix HTML in amazon_item_detail.php
#1041088: use module_load_include() instead of hand-coding by Pancho (backport): use module_load_include() instead of include_once()
#1040244: Deprecated function ereg_replace() in _amazon_store_page() by Pancho (backport): eradicate deprecated ereg_replace()
#727800: Ability to change store name from "Amazon Store" by the_g_bomb, rfay: Make it possible to change the store path and name
#944294: Add to cart 2nd and following times results in "Cart quantity updated to" empty by rfay: Followup to improve watchdog reporting.