Allow only editable blocks to be sorted in a region.
-rw-r--r-- 2106 README.txt
-rw-r--r-- 2551 context.api.php
-rw-r--r-- 10951 context.core.inc
-rw-r--r-- 166 context.info
-rw-r--r-- 8630 context.install
-rw-r--r-- 12504 context.module
-rw-r--r-- 4126 context.plugins.inc
drwxr-xr-x - context_layouts
drwxr-xr-x - context_ui
drwxr-xr-x - plugins
drwxr-xr-x - tests
drwxr-xr-x - theme