Merge branch 'master' of https://github.com/OpenCMISS/cm
Changed file to compile with my opencmissextras
User defined line search method - Brent's with golden section

Tracker item: 3696
Merge branch 'linesearch' into rigidBody
User defined linesearch method

Brent's with golden section search

Tracker item: 3696
Merge branch 'linesearch' into rigidBody