Since in production the SCSS files are compiled once and the javascript
files are combined once we can just as well gzip them aggresively.
This means that once they are requested and the browser supports gzip we
can just serve the gzipped file saving precious bandwidth.
Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>
When the instance is not installed don't run the JSCombiner as the appdata folder does not yet exist.
Signed-off-by: Lukas Reschke <lukas@statuscode.ch>