Reworked the install and packaging so it results in the same installation whatever the build is (manual, deb pkg or rpm pkg)

[olahaye74]

No need to %__cp %{SOURCE1}. File already there.
Note: using more than one source prevent a build from tarball using
rpmbuild -tb ganglia-web-3.5.12.tar.gz for instance.

[olahaye74]

[build & packaging] Reworked the install and packaging so it results in the same
installation whatever the build is (manual, deb pkg or rpm pkg)

• Use Makefile to make install for deb and rpm as well including config files.
• Include specfile in the dist-gzip so a rpmbuild -tb (tarbuild) can be used
• Added customization for rpmbuild using --with tags (see spec file for
  usage and more details).
• Use adequate default values for rpm. The apache_user is not www-data. it's apache...
• Use /etc/ganglia-webfrontend to store conf.php what ever the distro is.
  Make sure that a link is set to apache config dir using triggers or postinstall.
• Use /etc/ganglia-webfrontend to store conf.php what ever the distro is.
  Use a generic conf.php in /usr/share/ganglia-webfrontend to load the file from
  /etc/ganglia-webfrontend.
• Replaced vargwebstatedir with vargwebdir in conf_default.php.in and Makefile.
• filters dir was not created under debian pkg or manual make install
• Added possibility to have a httpd_group different from user. For instance you
  can choose to install files under apache.daemon identity. If not specified,
  a group with the same name as the user is used.
• Added comment in the install section of the Makefile so it's clear.
• Reworked dist-gzip target so version.php and spec file are generated while other
  .in files remain so they can be tuned by make or make install.
• Make sure that sharedstatedir is not owned by rpm package (conflict on fc-18+),
  and updated %file section accordingly.
• Removed the manual install and specific config files in debian packaging. Using
  standard make install DESTDIR=...

[olahaye74]

Tested on ubuntu 12.04: Works perfectly.
Tested on centos-6.5: Works perfectly.
Tested on fedora-17: Works perfectly.

[olahaye74]

Small fix that prevent to fall in a situation similar to https://bugs.launchpad.net/rpm/+bug/930471
Thus using --with web_prefixdir=/usr/share/ganglia-webfrontend --with httpd_user=www-data would end up having the following lua variables:
%web_prefixdir = /usr/share/ganglia_webfrontend
%httpd_user = www_data

[olahaye74]

Hopefully, this time, there is no more mistakes :)

[olahaye74]

--with doesn't accept value assignation and was apparently an unsupported option in previous rpm versions. Fixed by replacing --with var=value with --define 'var value'
Aslo made Makefile more smart and more vebose.
Splitted install: rule in 2 rules:
one that installs the files and one that does the chown. Thus package can be built with non-root account.