[OpenColorIO/f17] (15 commits) ...Remove unneeded patch.

[Richard Shaw]

Summary of changes:

  3d2b94d... Disable docs buliding for EL6. (*)
  8dd6b90... Fix cmake version check. (*)
  ef44d41... Another fix for the cmake version in EL6. (*)
  fc9b49e... Another fix for the cmake version in EL6. (*)
  4fc2f74... Another fix for the cmake version in EL6. (*)
  ee32f47... Another fix for the cmake version in EL6. (*)
  7d594e5... Another fix for the cmake version in EL6. (*)
  60e70e9... Finally get to build on EL6. (*)
  5b66754... Remove cmake workarounds and use cmake28 BR instead. (*)
  b6ec7b7... Use the right cmake macro. (*)
  0b7c813... Set docs to build. (*)
  742cfc5... Rework el6 macros. (*)
  096b26e... Rework el6 macros. (*)
  7192f58... Rework el6 macros. (*)
  b8ff60b... Remove unneeded patch. (*)

(*) This commit already existed in another branch; no separate mail sent