Added 0505-add-build-sysroot-config-option.patch

Which prevents the use of /usr/include and /usr/lib.
More 2.7.4 work
TCLTK workaround for cross compile bug
Remove 0515... LDFLAGS and CFLAGS are how this is done
Added some explanations/ramblings
2.7.4 tk fixes
tk needs config.site as per tcl
Windows: Add path of Python dll or exe to PATH
Prefer windows-x86 to windows
Sample commandlines updated to include linux32