Update to jssc 2.8.0

Fixes #1811

Author: Cristian Maglie

app/lib/jssc-2.6.0.jar

@@ -46,7 +46,7 @@
     <include name="app/lib/jmdns-3.4.1.jar" />
     <include name="app/lib/jna.jar" />
     <include name="app/lib/jsch-0.1.50.jar" />
-    <include name="app/lib/jssc-2.6.0.jar" />
+    <include name="app/lib/jssc-2.8.0.jar" />
     <include name="app/lib/ant.jar" />
     <include name="app/lib/ant-launcher.jar" />
   </fileset>

app/lib/jssc-2.8.0.jar

@@ -4,6 +4,8 @@ ARDUINO 1.5.6 BETA
 [ide]
 * Implemented 1.5 library specification Rev.2
   (https://github.com/arduino/Arduino/wiki/Arduino-IDE-1.5:-Library-specification)
+* Replaced RXTX library with JSSC (Alexey Sokolov)
+  http://code.google.com/p/java-simple-serial-connector/
 * Improved command-line parsing (Matthijs Kooijman)
 
 [libraries]