Removed NDEBUG macros from StackBacktrace.h

See merge request !129

Sometimes it makes sense to print the backtrace regardless of NDEBUG, it is the user's choice.

Removed compiler flags ignoring warnings related to variable-length arrays and instead forced them as errors

See merge request !128

Removed compiler flags ignoring warnings related to variable-length arrays and instead forced them as errors

Fixed variable-length array in File.hpp

See merge request !127

DistributedNDArraySynchronizer: removed LBM hack, added configuration of general neighbor and tag IDs

Benchmarks: fixed JsonLogging to properly escape the error message string

See merge request !124