Prevent *.pyo and *.pyc multilib problems

Differences in the python byte code fails in a build validation
(rpmdiff) done on difference architecture of the same package.

This patch:
 1) Ensures that timestamps of generated *.pyo and *.pyc files match
 2) Python integer literals greater or equal 2^32 and lower than 2^64
    are converted to long right away to prevent different type of
    the integer on architectures with different size of int

https://fedorahosted.org/freeipa/ticket/3858

install/configure.ac

@@ -18,6 +18,7 @@ AM_MAINTAINER_MODE
 #AC_HEADER_STDC
 
 AC_SUBST(VERSION)
+AC_SUBST([INSTALL_DATA], ['$(INSTALL) -m 644 -p'])
 
 AC_PROG_MKDIR_P
 AC_PROG_AWK