Rename events to be consistent

- Make State.save() always throttle calls -- since that's the common
case.

- Immediate saves are now the exception, with State.saveImmediate().

- The function is called State.save(), so the dispatch event should be
'stateSave'.

src/renderer/controllers/prefs-controller.js

@@ -55,7 +55,7 @@ module.exports = class PrefsController {
       ipcRenderer.send('setStartup', state.unsaved.prefs.startup)
     }
     state.saved.prefs = Object.assign(state.saved.prefs || {}, state.unsaved.prefs)
-    dispatch('saveState')
+    dispatch('stateSaveImmediate')
     dispatch('checkDownloadPath')
   }
 }

src/renderer/controllers/torrent-controller.js

@@ -129,20 +129,20 @@ module.exports = class TorrentController {
     const torrentSummary = this.getTorrentSummary(torrentKey)
     if (!torrentSummary) throw new Error('Not saving modtimes for deleted torrent ' + torrentKey)
     torrentSummary.fileModtimes = fileModtimes
-    dispatch('saveStateThrottled')
+    dispatch('stateSave')
   }
 
   torrentFileSaved (torrentKey, torrentFileName) {
     console.log('torrent file saved %s: %s', torrentKey, torrentFileName)
     const torrentSummary = this.getTorrentSummary(torrentKey)
     torrentSummary.torrentFileName = torrentFileName
-    dispatch('saveStateThrottled')
+    dispatch('stateSave')
   }
 
   torrentPosterSaved (torrentKey, posterFileName) {
     const torrentSummary = this.getTorrentSummary(torrentKey)
     torrentSummary.posterFileName = posterFileName
-    dispatch('saveStateThrottled')
+    dispatch('stateSave')
   }
 
   torrentAudioMetadata (infoHash, index, info) {

src/renderer/controllers/torrent-list-controller.js

@@ -158,7 +158,7 @@ module.exports = class TorrentListController {
 
       // remove torrent from saved list
       this.state.saved.torrents.splice(index, 1)
-      dispatch('saveStateThrottled')
+      dispatch('stateSave')
     }
 
     // prevent user from going forward to a deleted torrent

src/renderer/controllers/update-controller.js

@@ -1,4 +1,4 @@
-const State = require('../lib/state')
+const {dispatch} = require('../lib/dispatcher')
 
 // Controls the UI checking for new versions of the app, prompting install
 module.exports = class UpdateController {
@@ -21,6 +21,6 @@ module.exports = class UpdateController {
     let skipped = this.state.saved.skippedVersions
     if (!skipped) skipped = this.state.saved.skippedVersions = []
     skipped.push(version)
-    State.saveThrottled(this.state)
+    dispatch('stateSave')
   }
 }