#1395320 by dereine: Allow to use list human readable values instead of only machine key in argument summaries

#1359798 by nod_: Allow to use windows.location.search with clear urls as well. Thsi broke all ajax views without clean urls

#1382232 by mrtoner, merlinofchaos: Improve the description of views_update_7300 by fixing the grammar and other problems

#1372846 by frega, oadaeh: Add much better debug messages for creating instances of handlers/plugins

#1387396 by twistor: The Preserve certain tags dependent field should be directly below the Strip HTML tags checkbox

#1137892 by agentrickard: Provide an area handler which allows to use some tokens(items per page, etc.) in the header/footer.

by dereine: Improve filter term_node by defining all used variables, removed unused variables and document much more stuff.

Revert "#1324580 by pcramba, dereine: Build the arguments first, so the default arguments exist on validate plugins"

This reverts commit 5aaf4534.

#1374148 by tim.plunkett: Fix argument dependency for summary based on some conflicts of pre_render functions

#1283960 by dereine: Add a override-selector on adding-item form, so you can choose whether you want to add to master or current display