Fix several issues for Linux around casting SDKManager to concrete class:
mostly with reading devices.xml which Unix does not support. Migrated
ISDKManager#getMinimumSupportedSBSv2Version() to API. Can now import and create Symbian projects.
Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: Help Plug-in
Bundle-SymbolicName: com.nokia.carbide.cpp.sdk.doc.user;singleton:=true
Bundle-Version: 1.4.0.qualifier
Bundle-Vendor: Nokia
Bundle-ActivationPolicy: lazy