version up eggs.
use our own perl in buidling components.
version up : perl-XML-Parser 2.41. build with our own libexpat.
version up : perl 5.18.2.
use our own libxml2 in apache.
set RPATH for libaio.
fix URL.
set RPATH for zlib.
version up : perl-DBD-MySQLQ 4.027. cleanup.
version up : perl-DBI 1.631.
add DBD-mysql-4.027.rpathsupport.patch.
Merge branch 'erp5-component' into erp5
Merge remote-tracking branch 'origin/master' into erp5-cluster