CRA-624 Initiate push down data
Not included in merge
Merge branch 'master' of https://github.com/CRAVA/crava
Merge branch 'CRA-624'
CRA-626 Invert push down data in 1D profiles
Merge branch 'master' of https://github.com/CRAVA/crava
Merge branch 'master' of https://github.com/CRAVA/crava
CRA-637 Invert push down data in 4D
CRA-637 Clean up in code
Merge branch 'master' of https://github.com/CRAVA/crava

Conflicts:
	doc/user_manual/CRAVA_user_manual.pdf
Updated manual after conflict
Merge branch 'master' of https://github.com/CRAVA/crava
Merge branch 'CRA-637'
Merge pull request #53 from ulvmoen/master

Inversion of 4D push down data