fixed support for CentOS6 (force use of SLC6)

This change is needed because after the introduction of CentOS7 support, CentOS6 was recognized as centos6 and not slc6.

LbConfiguration/python/LbConfiguration/Platform.py

@@ -163,7 +163,7 @@ binary_opt_list = ["slc4_ia32_gcc34", "slc4_amd64_gcc34",
"x86_64-slc6-clang32-opt", "x86_64-slc6-clang34-opt",
"x86_64-slc6-clang35-opt", "x86_64-centos7-gcc48-opt",
"x86_64-centos7-gcc49-opt" ]
-                   
+
# future possible supported binaries
extra_binary_opt_list = ["slc3_ia32_gcc323",
"x86_64-slc5-gcc34-opt", "i686-slc5-gcc34-opt",
@@ -256,6 +256,7 @@ lsb_flavour_aliases   = {
flavor_runtime_compatibility = {
"centos7"  : ["centos7", "slc6", "slc5"],
+                                "centos6"  : ["slc6", "slc5"],
"slc6"  : ["slc6", "slc5"],
"slc5"  : ["slc5", "slc4"],
"slc4"  : ["slc4", "slc3"],
@@ -279,7 +280,7 @@ arch_runtime_compatiblity = {
}
flavor_runtime_equivalence = {
-                              "slc6"  : ["slc6", "co6", "rhel6"],
+                              "slc6"  : ["slc6", "co6", "rhel6","centos6"],
"slc5"  : ["slc5", "co5", "rhel5", "ub9", "fc13", "fc12", "fc11", "fc10"],
"slc4"  : ["slc4", "co4", "rhel4", "deb4"],
"slc3"  : ["slc3", "suse90", "suse100"],