Remove hardcoded version definition.

Version define introduced in commit 450d0d5244.
Global defines are on config.h, and populated by the build system.
Allow to run autotest by adding bugon/assert operator

Calling these operator on equation will abort() the program.

It will be used on autotest.
Check that U=RI
Use uniform naming for check
Add more test

test U=RI in ac and transient
Remove obsolete complex implementation

Remove obsolete implementation of complex class.
Simplify the complex class
Move matrix class to math
Merge pull request #26 from ra3xdh/ExportFigures

Export diagrams to PNG, JPG and SVG format
Merge branch 'master' of ssh://git.code.sf.net/p/qucs/git
Added Russian translations for my new features and some other Russian translations.