fix log and error message
add milisecond to start end on log and error
changed release script to use locally downloaded support files if they exist (ASCO, iverilog, freehdl, mingw32)
changelog
fix bug 110 - mirrorY n-port sparam component

The mirror-Y indeed perform a mirror-X and a 180deg rotation.
For this reason the Text is shown as mirror-X.
If you get on the schematic a component with the flags mirrorX and 2x90deg turns marked,
we should call a mirrorY while it is loaded an recreated.
fix bug 117 - subcircuit not mirroring or rotating

The mirror and rotate only work if the component has Ports.
Subcircuits are not annotated with port number, they have to
be openend and counted for ports (as during netlisting).
If the model is a Sub, the Port count is skipped on mirror
and rotate operations.
[doc] update doxygen file
[doc] fix issue with \mathbb font
[doc] set name to qucs-core and diagrams to UML
[doc] add doxygen config file to Qucs-GUI
fix bug 118 - file components cannot mirror/rotate

The problem is that the mirrorX and rotated count happens during load
and at that time the number of Ports ins not available.
The number of Ports is only available after recreate, (createSymbol) which
opens subcircuits, verilog and vhdl to count the ports.
Therefore, we skip the Port count for these components.
add local classes to doxygen extraction