pcp updates: merges, qa

[Nathan Scott <nathans@xxxxxxxxxx>]

Changes committed to git://git.pcp.io/pcp.git master

Ken McDonell (8):
      qa/581: add another network interface pattern to the filter
      qa/188: add glibc-2.20 as OK for Gentoo
      qa/551: hide unhelpful chatter from kill
      qa/admin/check-vm: teach script about Gentoo packages
      configure.ac: make sure some optional gcc flags make it into the build
      qa/1093: (new) test ?shell directive for pmcpp
      qa/463&464: diagnostic verbage changes when ?shell added to pmcpp
      pmcpp: add ?shell directive

MiloÅ PrchlÃk (1):
      pmdapostfix: add missing (benign) pmda type specifier in error log

Nathan Scott (1):
      pmdamounts: add mount fs usage metrics via statvfs(3)

 configure                        |  290 ++++++++++++++++++++-------------------
 configure.ac                     |   59 +++++--
 man/man1/pmcpp.1                 |   27 +++
 qa/1093                          |   91 ++++++++++++
 qa/1093.out                      |   65 ++++++++
 qa/188                           |    2 
 qa/463.out                       |    2 
 qa/464.out                       |    2 
 qa/551                           |    4 
 qa/581                           |    1 
 qa/845                           |   14 +
 qa/845.out                       |   46 +++++-
 qa/admin/check-vm                |   66 +++++++-
 qa/group                         |    1 
 qa/src/GNUlocaldefs              |    2 
 qa/src/fsstats.python            |   69 +++++++++
 src/pmcpp/pmcpp.c                |  107 +++++++++++++-
 src/pmdas/mounts/help            |   20 ++
 src/pmdas/mounts/mounts.c        |  234 +++++++++++++++++++++++++------
 src/pmdas/mounts/pmns            |   20 ++
 src/pmdas/postfix/pmdapostfix.pl |    2 
 21 files changed, 878 insertions(+), 246 deletions(-)