external current in postprocessor
total current for magnetic steadystate, tests and postprocessor quantities
Merge remote-tracking branch 'kus/master'

Conflicts:
	agros2d-library/hermes2d/plugin_interface.h
minor fixes
fix
minor typo fix
windows fix
libdxfrw updated
windows fix
debian package changed
Merge remote-tracking branch 'kus/master'

Conflicts:
	agros2d-generator/generator_module.cpp
	agros2d-library/hermes2d/plugin_interface.h