Wireshark Windows installer updated to 0.99.6a

A new Windows installer (wireshark-setup-0.99.6a.exe) has been released
in order to fix a problem with updating from WinPcap 4.0 to 4.0.1.
There are no other changes in the installer.  The source code and U3
packages have not changed.  The file size and checksums are listed below:

wireshark-setup-0.99.6a.exe: 18326376 bytes
MD5(wireshark-setup-0.99.6a.exe)=2a729456601508039ef363b4c0f66a62
SHA1(wireshark-setup-0.99.6a.exe)=1e387900a186c20cc172d364b3be67ecf6704310
RIPEMD160(wireshark-setup-0.99.6a.exe)=e85182cca802e191bfcf697c1cfdb124dd8249f2