Version 5.3 of Zotpress released.
* New "brackets" in-text citation shortcode attribute.
* Re-structured import and admin scripts.
* Expanded in-text formatting.
* Added submenu to admin sidebar.
* Added ability to set default accounts on Browse and Accounts and selectively import on Browse.
* Applied fix for array_multisort warning.
* Minor style updates throughout.

git-svn-id: https://plugins.svn.wordpress.org/zotpress/trunk@1039219 b8457f37-d9ea-0310-8a92-e5e31aec5664