beremiz

file isExecutable
fix pylint py3k conversion warning: "(no-absolute-import) import missing `from __future__ import absolute_import`"
<xsd:attribute name="Command" type="xsd:string" use="optional" default="make -C %(buildpath)s all BEREMIZSRC=%(src)s BEREMIZCFLAGS=%(cflags)s MD5=%(md5)s USE_BEREMIZ=1 FROM_BEREMIZ=1"/>