Update changes again, one day we'll release 0.4.0

Closes #46

CHANGES.md

@@ -1,10 +1,15 @@
 # Rojo Change Log
 
-## Current Master (0.4.0)
+## Current Master
+*No changes*
+
+## 0.4.0
 * Protocol version 1, which shifts more responsibility onto the server
 	* This is a **major breaking** change!
 	* The server now has a content of 'filter plugins', which transform data at various stages in the pipeline
 	* The server now exposes Roblox instance objects instead of file contents, which lines up with how `rojo pack` will work, and paves the way for more robust syncing.
+* Added `*.model.json` files, which let you embed small Roblox objects into your Rojo tree.
+* Improved error messages in some cases ([#46](https://github.com/LPGhatguy/rojo/issues/46))
 
 ## 0.3.2
 * Fixed `rojo serve` failing to correctly construct an absolute root path when passed as an argument

src/vfs/vfs_watcher.rs

@@ -78,11 +78,14 @@ impl VfsWatcher {
                 let (tx, rx) = mpsc::channel();
 
                 let mut watcher: RecommendedWatcher = Watcher::new(tx, Duration::from_secs(1))
-                    .expect("Unable to create watcher!");
+                    .expect("Unable to create watcher! This is a bug in Rojo.");
 
-                watcher
-                    .watch(&root_path, RecursiveMode::Recursive)
-                    .expect("Unable to watch path!");
+                match watcher.watch(&root_path, RecursiveMode::Recursive) {
+                    Ok(_) => (),
+                    Err(_) => {
+                        panic!("Unable to watch partition {}, with path {}! Make sure that it's a file or directory.", partition_name, root_path.display());
+                    },
+                }
 
                 watchers.push(watcher);