• Convert misc/xosd and dependent ports which need it (deskutils/xneur, polish/ekg2, polish/gnugadu2, sysutils/lineak-xosdplugin) to USES=libtool, drop .la files
• Since xosd shlib version has changed, bump all ports which depend on it
• Stagify deskutils/xneur
• Convert USE_BZIP2 to USES
• Use new LIB_DEPENDS syntax

Approved by: portmgr blanket