* adding rhel 6 kernel support

* adding back the .x in 7.x

* docs - resgroup gp_resgroup_memory_policy GUC, show/set limit bypass

* Update workload_mgmt_resgroups.xml

* doc: Warning about add cgroup kernel issue to resource group docs.

* docs: fix typo

* Edits to make 'resource management' using resource queues, resources groups, consistent throughout. This is to distinguish between resource management and general workload profiles, as well as to avoid conusion with Workload Manager product.

* Edits from Lisa's review

* docs - add suse11 swapaccount req to resgroup cgroup cfg

* must reboot after setting boot parameters

* docs - memory_spill_ratio guc and related content

* operator -> transaction

* docs - resource mgmt restructure, resgroup initial content

* incorporate edits from david; some reorg

* add memory allotment diagram

* minor edit

* make resource group experimental note a warning

* incorporate edits from simon

* update base color of resource group graphic

* add missing ;