better handling of apps and plugins

* better logs for plugins
* manage app type to allow plugins to define their own kind of apps
0.2.5
up search index version
0.2.6
step down search index version
0.2.7
fix plugin configuration logging
0.2.8
remove search indexer as dependency
change signika font to source sans pro
up pouch version
0.2.9
make version numbers more explicit
0.2.10
put back silent option
add static apps readme
0.2.11
Merge branch 'static-apps'