Updating next release version to be v3.0.6

Author: arobenko

CMakeLists.txt

@@ -40,7 +40,7 @@ option (MQTTSN_BUILD_LATEX "Build and install project generated by the commsdsl2
 # COMMSDSL2C_EXTRA_ARGS - Extra arguments to pass to "commsdsl2c"
 # COMMSDSL2LATEX_EXTRA_ARGS - Extra arguments to pass to "commsdsl2latex"
 
-set (MQTTSN_VERSION "3.0.5")
+set (MQTTSN_VERSION "3.0.6")
 set (MQTTSN_MIN_COMMSDSL_VERSION "8.0")
 
 if ("${CMAKE_CXX_STANDARD}" STREQUAL "")