tswitch: use cubic spline interplation to smooth switching
Added verilog-A ideal voltage controlled resistor.
tswitch.cpp: added MaxDuration
tswitch.cpp: minor cosmetic change and comment
configure.ac: in debug mode add -O0 if using gcc to assist debugging
configure.ac: only use AM_PROG_AR if defined
Make main document tabs moveable if available in Qt version
vcresistor.va: made compatible with adms 2.3
qucsgui.cbp: Added vcresistor files to project
qucsgui.cbp: Added qt_features.m4 to code::blocks project
Added m-file data access example
mextrsolver.cpp: corrected bug in probe output result checks
Added m-file data access functions
Added ecvs m-file example
asynctrcircuit.m: updated copyright statement
qucstrans.m: added setecvs method and added help text to methods
mextrsolver.cpp: getiprobe now calls correct function
Added cmake test file for QTabWidget::setMovable ()
enable FreeBSD configure, patch by Joerg Wunsch

See bug #142 on SF.
Fixed missing bracket (namespace std) in complex.cpp, only visible in Windows due to #ifdef