Fix @somatonic issue #435 with undefined notices in debug mode.
Fix @somatonic issue #434 with JS error occurring in ProcessField.js when context editing a FieldsetTabOpen field.
Add @teppokoivula PR #442 to correct non-descriptive error message in ProcessModule.module
Update ImageSizer to accept undefined options for 3rd party usage (per Horst).
Some minor tweaks/adjustments in support of FieldtypePageTable/InputfieldPageTable
Various minor adjustments and bug fixes.
Make Pagefile/Pageimage url, httpUrl, and filename methods hookable per @teppokoivula issue #443
Fix issue #446 and issue #169 with removing field from fieldgroup and canceling it on next screen caused field to float to top in fieldgroup. Fixed it by adding a new asmSelect option to mark fields for deletion rather than removing them from the <select>.