Merge pull request #1702 from conejoninja/hotfixes

missing default value
Merge pull request #1703 from conejoninja/hotfixes

version changed to new release
issue #1679
Merge pull request #1704 from conejoninja/1679

issue #1679
issue #1659
Merge pull request #1705 from conejoninja/1659

issue #1659
issue #1671
issue #1673
issue #1688
Merge pull request #1706 from conejoninja/1671

issue #1671
Merge pull request #1707 from conejoninja/1673

issue #1673
Merge pull request #1708 from conejoninja/1688

issue #1688
issue #1697
Merge pull request #1709 from conejoninja/1697

issue #1697
issue #1701
Merge pull request #1710 from conejoninja/1701

issue #1701
fixed issue with apc/apcu flush function call
fixed #1669 #1668, append site url in cache key
fixed category findbyprimarykey cache issue
fix