#1080690 by dereine: Fix target/key for querying against sql databases. Therefore don't use db_select anymore.

Issue #1046170 by agentrickard, blackice2999, dereine: Execute preExecute before generate the countQuery to fix pagers with node_access.

+#1006482 by dereine: Fix filter: user posted or commented handler.
 #870960 by bojanz, dereine: Field label should derive from field Label, not field name.
 +#1056824 by greggles: Rename the displayed permission from "access all views" to "bypass views access control".

Sync the changelog with git.

#1026014 by dereine and alex_b: Use more always should not ask for the count query to see if we need to show the more link.

#1007466 by aspilicious, dereine: Provide a api function for adding complex queries: add_where_expression, add_having_condition.

#1007730 by bojanz, merlinofchaos, dereine: Fix views_handler_filter_string, add tests and add a general placeholder method.