Bug 952408 - Node filters threaddump calls

* Return error message if application is stopped
Fix bug 927850
WIP Cartridge Refactor - V2 support for reading .uservars
Add more information to the EINVAL errors.
Bug 950711 - Apps taking longer than 120s fail to restore; bump to 200s to cover the few apps affected.
Fix bug 949425 949426 952096
Bug 947356 - Add Requires gd-devel

* Support perl application developers using GD module
Bug 951994 - Underlying ruby selinux library appears to be unstable.  Rewrite to call the command line.
Fix for bug 952551
Preventing the removal of gears that host singletons through admin script
Merge pull request #2083 from pmorie/bugs/927850

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Merge pull request #2096 from pmorie/bugs/949425

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Merge pull request #2095 from jwhonce/bug/952408

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Merge pull request #2097 from jwhonce/bug/947356

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Merge pull request #2091 from rmillner/fixselinux

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Merge pull request #2098 from abhgupta/bug_952551

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