Merge pull request ruslo#491 from alamaison/develop

Make libssh2 cacheable.

Qt iOS: set development team

Docs: CMake 3.7 notes

Merge pull request ruslo#572 from headupinclouds/pr.opencv-3.0.0-p7.q…

…tkit.option

Pr.opencv 3.0.0 p7.qtkit.option

PNG 1.6.26-p1

More patterns for cache cleanup

Fix issue #569

ogles_gpgpu 0.1.3

Merge pull request ruslo#568 from Ubiquite/patch-1

update doc with new hunter archive

Merge pull request ruslo#564 from tatraian/autobahn-cpp

Autobahn cpp

Cache "meta" download: improve servers polling logic