Dmitry Savvinov
bd153b0606
- Use 'null' as indicator of non-MPP version. Consequently, remove
useless 'isMpp' method, and lift all methods to extensions (to be able
to call them on nullable 'facetSettings.mppVersion')
- Change semantics of extensions to check for exact equality rather than
for "at least specified version"
- Deprecate old MPP-versioning in favour of 'facetSettings.mppVersion'
Original commit: 958a7d9315