Add filters for post_types & field_types

* Add filter custom_bulkquick_edit_manage_posts_custom_column_field_type
* Add filter custom_bulkquick_edit_quick_edit_custom_box_field
* Add filter custom_bulkquick_edit_settings_as_types
* Add filter custom_bulkquick_edit_settings_display_setting
* Add filter custom_bulkquick_edit_settings_post_type
Update .travis with apt-get update