some more fixes. almost ready for testing?

code/models/trackartists.lua

@@ -1,7 +1,7 @@
 local Model = require("lapis.db.model").Model
 
 -- track_artists
-local TrackArtists = Model:extend("track_artists", {
+local Trackartists = Model:extend("track_artists", {
     timestamp = true,
     relations = {
         {"track", belongs_to = "Tracks"},
@@ -9,4 +9,4 @@ local TrackArtists = Model:extend("track_artists", {
     }
 })
 
-return TrackArtists
+return Trackartists

code/models/trackreleases.lua

@@ -1,7 +1,7 @@
 local Model = require("lapis.db.model").Model
 
 -- track_releases
-local TrackReleases = Model:extend("track_releases", {
+local Trackreleases = Model:extend("track_releases", {
     timestamp = true,
     relations = {
         {"track", belongs_to = "Tracks"},
@@ -9,4 +9,4 @@ local TrackReleases = Model:extend("track_releases", {
     }
 })
 
-return TrackReleases
+return Trackreleases