updates for wp3.9; also add edit functionality for existing shortcodes.

git-svn-id: https://plugins.svn.wordpress.org/insert-pages/trunk@1020618 b8457f37-d9ea-0310-8a92-e5e31aec5664
fix for options button toggle in tinymce popup; also fixed popup display on small screen sizes (mobile-friendly).

git-svn-id: https://plugins.svn.wordpress.org/insert-pages/trunk@1020619 b8457f37-d9ea-0310-8a92-e5e31aec5664
fix: long page template names caused Display field to wrap in the insert pages tinymce popup; set to nowrap to prevent this.

git-svn-id: https://plugins.svn.wordpress.org/insert-pages/trunk@1020620 b8457f37-d9ea-0310-8a92-e5e31aec5664
version bump (1.6).

git-svn-id: https://plugins.svn.wordpress.org/insert-pages/trunk@1020621 b8457f37-d9ea-0310-8a92-e5e31aec5664
whitespace fixes.

git-svn-id: https://plugins.svn.wordpress.org/insert-pages/trunk@1020622 b8457f37-d9ea-0310-8a92-e5e31aec5664