Consolidate ConversionConfiguration

[pbroman]

We should see to, that the beans really are named after what they specifically do and that all variants are supplied.

[pbroman]

Variants:

• ImageMagick converter (for jpg or pdf) with cache path

• ImageMagick converter (for jpg or pdf) with files path for preproduction

• AwtImageFileConverter with cache path

• AwtImageFileConverter with files path for preproduction

• PdfboxFileConverter with cache path

• PdfboxFileConverter with files path for preproduction

• Actions for Caching and Preproducing