Hotspot

Khem and I were trying to enable hotspot for x86_64 using a bbappend doing --enable-zero=no and ran into some build issues.

After applying these patches (and using that bbappend) jenkins runs a *lot* faster, no more 20 seconds waittimes for pages to load. It's not perfect since there's still a -vm-zero package with server/libjvm.so, but such is life.