Reinstate toggle comment and toggle block comment commands.

This reverts commit 1a1c7fa, which was an accident.

Signed-off-by: yrammos <yannis.rammos@me.com>

SubLilyPond.tmPreferences

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+   <key>name</key>
+   <string>Comments</string>
+   <key>scope</key>
+   <string>source.lilypond</string>
+   <key>settings</key>
+   <dict>
+      <key>shellVariables</key>
+      <array>
+         <dict>
+            <key>name</key>
+            <string>TM_COMMENT_START</string>
+            <key>value</key>
+            <string>% </string>
+         </dict>
+         <dict>
+            <key>name</key>
+            <string>TM_COMMENT_START_2</string>
+            <key>value</key>
+            <string>%{</string>
+         </dict>
+         <dict>
+            <key>name</key>
+            <string>TM_COMMENT_END_2</string>
+            <key>value</key>
+            <string>%}</string>
+         </dict>
+      </array>
+   </dict>
+   <key>uuid</key>
+   <string>B1943274-37D6-46AA-8ADC-37664D0E25F1</string>
+</dict>
+</plist>