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.
source.cstest.jar = src/
output.cstest.jar = bin/
bin.includes = plugin.xml,\
META-INF/,\
cstest.jar,\
data/
compilerArg=-encoding UTF8