Some work on Reporting

Hi @timlinux, this PR will fix:
- https://github.com/AIFDR/inasafe/issues/911 (The template item properties do not appear after opening it using 'Open Composer' option)
- https://github.com/AIFDR/inasafe/issues/994 (PDF from impact layer generated from volcano IF does not show the complete information)
Please add some comments about the specificity of the order of these calls as per the ticker filed on QGIS see #911.