preparing dev4 for ubuntu tests

cmake/toolchain/heptools-dev4.cmake

@@ -78,7 +78,7 @@ LCG_external_package(mistune           0.5.1
 LCG_external_package(mock              0.8.0                                    )
 LCG_external_package(mpich2            1.5                                      )
 LCG_external_package(multiprocessing   2.6.2.1                                  )
-LCG_external_package(mysql             5.5.30                                   )
+LCG_external_package(mysql             5.7.11                                   )
 LCG_external_package(mysql_python      1.2.3                                    )
 LCG_external_package(ninja             1.6.0                                    )
 LCG_external_package(nose              1.1.2                                    )
@@ -152,7 +152,7 @@ endif()
 LCG_external_package(yamlcpp           0.5.1                                     )
 
 #---EMI-2 grid externals and other binary packages---------------------
-if(NOT ${LCG_OS} MATCHES "mac")
+if(NOT ${LCG_OS} MATCHES "mac" OR NOT ${LCG_OS} MATCHES "ubuntu")
   LCG_external_package(libunwind       5c2cade                                  )
   LCG_external_package(igprof          5.9.11                                    )
 endif()