Build qca with Qt5
Build OpenSSL with EVP_md2 enabled
Use Visual Studio 2012
Remove data_time from boost debug build
Drop full-blown Qt5 build. Can't build my shiny Qt Creator 3.0 anyway.
Revert "Build qca with Qt5"

This reverts commit 4c2da2f71f098eab3d205e813c91bf7fade780d8.
Fix Qt4 Webkit compilation with msvc2012
Fixup Qt Creator build script
Fix icu builds
Really fix Qt4 Webkit compilation with msvc2012
Fix: qca test script can't find qca.dll
Use proper runtime with qBt
Fix qca plugins installation in Quassel