SnapshotController: add .pdf ext to pdf filename
Welcome page: fix typo

Fix typo atrributes => attributes
Messages: import fixes from applicationbase

Update messages-base.properties with typo fixes from applicationbase.
Messages: import fixes from applicationbase again

Update messages-base.properties with typo fixes from
applicationbase again.
Merge pull request #17 from University-of-Auckland/develop-misc-fixes

Develop misc fixes