Support team backups in packed format

Team backup/restore was previously always unpacked, which is good for
readability but bad for memory usage. At high team counts, this can be a
serious problem, so with this change, if you have more than 350 teams,
your teams will be backed up in packed format.

js/client-teambuilder.js

@@ -152,7 +152,13 @@
 					buf += '<div class="teamedit"><textarea readonly class="textbox" rows="17">' + Tools.escapeHTML(Storage.exportFolder(this.curFolder)) + '</textarea></div>';
 				} else {
 					buf = '<div class="pad"><button name="back"><i class="fa fa-chevron-left"></i> List</button> <button name="saveBackup" class="savebutton"><i class="fa fa-floppy-o"></i> Save</button></div>';
-					buf += '<div class="teamedit"><textarea class="textbox" rows="17">' + Tools.escapeHTML(Storage.exportAllTeams()) + '</textarea></div>';
+					buf += '<div class="teamedit"><textarea class="textbox" rows="17">';
+					if (Storage.teams.length > 350) {
+						buf += Tools.escapeHTML(Storage.getPackedTeams());
+					} else {
+						buf += Tools.escapeHTML(Storage.exportAllTeams());
+					}
+					buf += '</textarea></div>';
 				}
 				this.$el.html(buf);
 				this.$('.teamedit textarea').focus().select();

js/storage.js

@@ -1022,9 +1022,9 @@ Storage.getPackedTeam = function (team) {
 	return team.team;
 };
 
-Storage.importTeam = function (text, teams) {
-	var text = text.split("\n");
-	var team = [];
+Storage.importTeam = function (buffer, teams) {
+	var text = buffer.split("\n");
+	var team = teams ? null : [];
 	var curSet = null;
 	if (teams === true) {
 		Storage.teams = [];
@@ -1062,6 +1062,10 @@ Storage.importTeam = function (text, teams) {
 				folder: folder,
 				iconCache: ''
 			});
+		} else if (!team) {
+			// not in backup format
+			Storage.teams = Storage.unpackAllTeams(buffer);
+			return;
 		} else if (!curSet) {
 			curSet = {name: '', species: '', gender: ''};
 			team.push(curSet);