Fix bug 915502

Only set RestCartridge.scales_with if a scaling cart is found.
Merge pull request #1451 from pmorie/bugs/915502

Merged by openshift-bot
Bug 914639
Bug 895507
Merge pull request #1452 from danmcp/master

Bug 914639
Documentation
<oo-diagnostics> add selinux enforcing check; fix small bug in cache test
Merge pull request #1454 from bdecoste/master

Merged by openshift-bot
avoiding unnecessary mongo queries and fixing routes constraints
Fix X-Client-IP.
Use an openshift specific log for last_access.
WIP Cartridge Refactor - Update cartridge author's guide

* latest updates/improvements
Merge pull request #1445 from kraman/gen_docs

Merged by openshift-bot
Merge pull request #1460 from jwhonce/wip/master

WIP Cartridge Refactor - Update cartridge author's guide
Merge pull request #1457 from sosiouxme/diagnostics

Merged by openshift-bot
Bug 915471 - The set_selinux_context function was being used in the wrong place.
Merge pull request #1453 from abhgupta/abhgupta-dev

Merged by openshift-bot
Add debug timings for external operations
Should be using uuid for gear name
Bug 912238 - The last rescue was catching exit.