Removed svgInput variable
PhantomJS running as server can save files to filesystem, closes #2137
Further improvements on saving files locally when running PhantomJS as server
Adapted Java exporting server to PhantomJS saving files locally
Partly implemented async download functionality for export server
Merge branch 'master' into feature-async-download

Conflicts:

exporting-server/java/highcharts-export/highcharts-export-convert/src/ma
in/java/com/highcharts/export/converter/SVGConverter.java
Added CORS filter for Cross-Origin requests
Implemented Async download from exportserver

A part of implementing async behaviour was improving the temporary file
creation and lookup on the OS's filesystem.
Implementation of a temporary storage for files
Improvements on Async download and Fix for Android Browser

Android browser runs a GET right after the POST request. This strange
behaviour is now tackled by storing the outputted file in session.
Merge branch 'feature-async-download'

Conflicts:

exporting-server/java/highcharts-export/highcharts-export-convert/src/ma
in/java/com/highcharts/export/converter/SVGConverter.java
Combined to RequestMappings to simplify Async Download