update the label of the release
Specify dir. layout and stylesheets in common templates

These options should be common to all OPM modules to get the same look
for the generated documentation.
Install header-only pkgconfig file to generic lib/

The previous version assumed that we had libraries, and thus always
installs the .pc file in the multi-arch library directory. However,
we now have modules which does not have a library, but whose header
files still need to be located. Since the lib/ directory is usually
in the pkgconfig search path, it is natural to put them there.
update packaging
Valgrind: fix a small issue that only appears with multiple compile units

this were forgotten 'inline' statements for some client request functions.
use a fully qualified source0 url
Merge pull request #15 from akva2/qualified_source0

use a fully qualified source0 url
el5 adjustments
make packaging compatible with EL5