[strongSwan] Remove all elements from a hashtable_t

[Tobias Brunner]

Hi Graham,

> If I get a chance, I'll try out your patch, this may take some weeks  
> to getting around to though.

Unfortunately, the patch contained a small bug.  But I commited a  
proper version to master on Monday (see [1]).

Regards,
Tobias

[1]http://git.strongswan.org/?p=strongswan.git;a=commit;h=b2ddaf07755176eab43bc8c58aa632eb915f4786