[testcases.spe10] moved configs out of class
[linearelliptic.discreteproblem] updated DiscreteBlockProblem
[linearelliptic.discretizations.base] added logging
[linearelliptic.discretizations.base] updated CRTP
[linearelliptic.discretizations.cg] minor update
[linearelliptic] updated grid walker related stuff
[linearelliptic.discretizations.interfaces] updated CRTP
[linearelliptic.discretizations.swipdg] minor update
[linearelliptic.testcases.OS2014] whitespace
[linearelliptic.testcases.spe10] added inline to static methods
[test] updated defines
[test.linearelliptic-block-swipdg] viewRange -> entityRange
[examples.linearelliptic.OS2014] added first draft
[examples.linearelliptic.OS2014] added python bindings
[examples.linearelliptic.OS2014] added first draft of main