checking valid context uris
MARMOTTA-196: switched to servlet 3.0 java annotations to considerably reduce the size of the minimum web.xml file
MARMOTTA-196: removed unnecesary configuration (now defined by annotations) in the webxml files of our launchers
MARMOTTA-196: accordingly update the webapp archetype
Merge branch 'develop' of https://git-wip-us.apache.org/repos/asf/incubator-marmotta into develop