Bug with empty subject and few spaces from header to body

[hcav]

I installed RoundCube from SVN today and found 2 bugs:

When I try to open a message without subject, RoundCube crashes with a blank screen.
I composed a message with kmail without leaving any adicional blank line at the top of the message and when I tried to open that message with RoundCube, the message was not shown (only headers were shown).