Add a handle pointing to MarshalLogCallback delegate to keep it safe from GC
Add a handle pointing to MarshalLogCallback delegate to keep it safe from GC

git-svn-id: c5ca0316c0a359807aec481e67232662b6228a9c@341 2f5d681c-ba19-11dd-a503-ed2d4bea8bb5

nizox/tapcfg,nizox/tapcfg,nizox/tapcfg,nizox/tapcfg,nizox/tapcfg