add custom categories in categories list#20

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ggalancs wants to merge 3 commits intoNickCL2:masterfrom

ggalancs:master

Commits on Jul 6, 2015

add custom categories in categories list
committed

Commits on Jul 9, 2015

Search category by slug instead category_id. This allow to show custom_categories of custom post-types.
ggalancs
committed

Commits on Jul 10, 2015

Add Filter to search correctly custom post types by custom categories
ggalancs
committed