Add support linux environment.

Change-Id: I533ec36a1bb7044a224248fdda930fdb9daf7ca2
diff --git a/core/releng/org.polarsys.esf.core.releng/feature.xml b/core/releng/org.polarsys.esf.core.releng/feature.xml
index ff519ae..d87cf5b 100644
--- a/core/releng/org.polarsys.esf.core.releng/feature.xml
+++ b/core/releng/org.polarsys.esf.core.releng/feature.xml
@@ -5,7 +5,7 @@
       version="0.7.0.qualifier"
       provider-name="%providerName"
       plugin="org.polarsys.esf.core.releng.branding"
-      os="win32"
+      os="linux,win32"
       ws="win32"
       arch="x86_64">