Backed out misguided 'build both' patch.

Backed out misguided 'build both' patch.
Reshuffled library name code into a slightly neater stack.

Added separate shared and static msw builds to .debs  :(
that makes 13 builds of the core lib alone required to create
all packages now..  (anyone want to donate me a fast MP box :)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@12301 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775