Merging with you guys

Hey there
I could merge myself in but please review:
- Most of the old MQM stuff is removed, so its target should compile again
- I Added 2 new things (not unit tested yet)
   src/D/qtl/plugins/4store/tripleStore.d /* Connect to triple store from D */
   src/R/rqtlToN3.R /* Load a cross object to a triple store */

Gr,
Danny