Fixed IEEE802_11 constructor from buffer to allow initialization from shorter 802.11 types.
Fixed IEEE802_11 constructor from buffer to allow initialization from shorter 802.11 types.

wavelets/libtins,hanw/libtins,wavelets/libtins,rklabs/libtins,salessandri/libtins,zmb3/libtins,viveks9/decrypt80211,hanw/libtins,zmb3/libtins,viveks9/decrypt80211,rklabs/libtins,UlfWetzker/libtins,capturePointer/libtins,bowlofstew/libtins,mfontanini/libtins,UlfWetzker/libtins,capturePointer/libtins,mfontanini/libtins,salessandri/libtins,bowlofstew/libtins