Updated for 0.8 release

Preview for the 0.8.0 release.

Just two side note:
"0.7.6 sha1 is still to be added"

Feb 5, 2012 	ettercap-0.7.4.1.tar.gz 	0.7.4.1-Lazarus 	f4263230a6065af96b33093f39ed9a387453e3b2
Dec 4, 2011 	ettercap-0.7.4.tar.gz 	0.7.4-Lazarus 	28f43a1259c0b337de63a36657b4091f59667039
May 29, 2005 	ettercap-NG-0.7.3.tar.gz 	NG-0.7.3 	7a2c3f848ca4f39c07fddeb0d6308641265bc4ff
Dec 21, 2004 	ettercap-NG-0.7.2.tar.gz 	NG-0.7.2 	514760efdca27a45d6486c18679d2b6e9ba67452

are we sure they are sha1?
the length seems to suggest md5 or something else, would be nice to check this