Resolve "Matched distribution not working with SCALABLE = FALSE"

Closes #566

See merge request OPAL/src!395

Resolve "Matched Distribution: Not matched?"

See merge request OPAL/src!393

RealDiracMatrix: remove unused functions, change storage type of ublas vector and fix bug in function 'transform'

Resolve "SAAMG: Wrong results with elliptic geometry"

Closes #542

See merge request !371

Resolve "Bend without DESIGNENERGY gives infinite loop"

Closes #546

See merge request !394

Resolve "Formula momentum conversion"

See merge request OPAL/src!385