workaround for keymanager issue.

returnValue is always true from keymanager... why? :(
preparations for md5 digest auth
initial test for md5 digest auth
fixed possible error in vCard import
Merge remote-tracking branch 'origin/Garfonso/mdigest' into Garfonso/work
0.3.14
Merge pull request #52 from webOS-ports/Garfonso/work

some c+dav fixes