added to allow access restriction filtering on overview screens for enabled post types
posts admin filter
added conditions to render filter field
post type by default
using correct id filter and parameter received by reference
add posts filter
add posts filter
Merge pull request #5 from eggemplo/capability-filters

Capability filters
capability filters
remember previous capabilities selected
Merge pull request #6 from eggemplo/capability-filters

remember previous capabilities selected
CSS and code improvements
margins
Merge branch 'capability-filters'