[demos] added missing virtualenv source
[demos] added tests
[config.opts] remove -fno-strict-aliasing
[demos] added missing '
[config.opts] added some warnings
[dune-stuff] updated master
[dune-pymor] updated OS2014-FVCA7-poster
[dune-grid-multiscale] updated master
[dune-hdd] updated OS2014
[configs] added
[config.opts] use clang opts from config
[gitmodules] use non ssl urls
[local.bin] updated master
[demos] updated
[external-libraries] updated
[dune-common] updated to 2.3.1
[dune-geometry] updated to 2.3.1
[dune-grid] updated to 2.3.1
[dune-istl] updated to 2.3.1
[dune-localfunctions] updated to 2.3.1