Add elixir comments support

Author: Paulo George Gomes Bezerra

Comments.tmPreferences

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<plist version="1.0">
+<dict>
+	<key>name</key>
+	<string>Comments</string>
+	<key>scope</key>
+	<string>source.elixir</string>
+	<key>settings</key>
+	<dict>
+		<key>shellVariables</key>
+		<array>
+			<dict>
+				<key>name</key>
+				<string>TM_COMMENT_START</string>
+				<key>value</key>
+				<string># </string>
+			</dict>
+		</array>
+	</dict>
+</dict>
+</plist>
+