Add missing AiFollow ActorId initialization (Fixes #1818)
SaveGameDialog: Allow deleting saves with keyboard (Delete key)
fix building on GNU Hurd
Set render queue group for projectiles (Fixes #1829)
Initial work on implementing corprus worsening effect
Move fast-forward of particle systems outside of OgreNifLoader (Fixes #1830)

Particle systems were being fast-forwarded before the skeleton base was attached, so particles without the LocalSpace flag would spawn at an incorrect position.
fixes building on systems with kFreeBSD kernel
unloadUnreferencedMaterials: Properly unload materials instead of removing techniques
Implement saving/loading of corprus stats, remove redundant code
Make sure not to add duplicate viewports (Fixes #1832)

Wasn't a problem while testing reload() on linux. Maybe an implementation difference with Ogre's D3D rendersystem?
Purge blight should not remove corprus
Make Spells::mCorprusSpells private
Implement removal of corprus spells
Change player draw state when quick-selecting weapon or spell.
(Fixes #1828)
Merge remote-tracking branch 'miroslavr/corprus'
SaveGameDialog: use ComboBox accept event, not changePosition (improves keyboard navigation)
Need to change draw state if use'd item is in player's right hand.
Forgot to update comment.
getpcrank did not read the explicit reference in some cases (Fixed #1767)
fix for PCJoinFaction and for getPcRank without explicit reference