Temporarily disable failing doctest.

Refs #10083
Re #10031. Throw exception if not converged.
Merge branch 'master' into feature/10187_process_groups
refs #10187. Need to open the group first.
Convert umbra and penumbra values to metres internally.

Refs #10169
Merge branch 'master' into feature/10246_Fix_os10.9_clang_failed_tests
Re #10031. Fix for normal distribution on rhel6.
refs #10187. Fix SaveNexus.
Merge branch 'master' into feature/9842_mc_absorb_hollow_cylinder
Refs #10280. Added symbol parser into own class.
Refs #10280. Refactored SymmetryOperation and factory
Refs #10224. Considered the extreme case.

On branch bugfix/10224_findpeaks_bug
  (use "git reset HEAD <file>..." to unstage)

      modified:   ../Mantid/Framework/Algorithms/src/FitPeak.cpp
refs #10187. Bug in test code.
refs #9998 Should fix it though the tests still needed.
refs #9998 missing format specification
Refs #10280. Changed python exports
Refs #10280. Updated documentation comments.
Refs #10279 Repaired test_derivatives
Search for instument in every facility

Refs #10083
refs #10187. History tracking fix.

The history tracking object must be initialized whether we are processing
groups or not.