[BBv2 msvc toolset] vc-8.0 autodetection using VS80COMNTOOLS

From: Andrey Melnikov (melnikov_at_[hidden])
Date: 2005-07-09 12:49:19

Now the toolset doesn't use this environment variable to autodetect VS 
2005 installation path. I think nobody has any objections against adding 
this feature?

Andrey