fix issue, then it wasn't possible to remove functional blocks from
project using right click and popup menu.

The problem is that, PopupMenu was called using IDEFrame object and as
a result item in ProjectTree loosed focus and focus went to IDEFrame.
Therefore later functions couldn't detect which item in ProjectTree
was selected.

from ..toolchain_gcc import toolchain_gcc

class Win32_target(toolchain_gcc):
    dlopen_prefix = ""
    extension = ".dll"
    def getBuilderLDFLAGS(self):
        return toolchain_gcc.getBuilderLDFLAGS(self) + ["-shared", "-lwinmm"]