2 bugfixes in preparation for ch.elexis.privatnotizen/bildanzeige

changed:
1)
Extensions.getClasses("ch.elexis.KonsExtension",... to
Extensions.getClasses("ch.elexis.core.ui.KonsExtension", ...

-> Hey: now all the extensions are showing up!!!   ;-)

2)
disabled emFont.dispose() since we couldn't re-open the view again because of the disposed font

Gruss, Harry