Merge branch 'release/0.6.3'
Add GPL v3 license headers to sources

Issue #350.
Merge branch 'issue/350'
report: Tiny addition
report/product: Minor table reword
report/requirements: Add table hline
report/product: Morning writing
report: Comment document details
report: Add moderator to cover page
report/cover: Use centred table for details
Documentation: Import presentation poster
report: Add acknowledgements
build/report: Exclude dotfiles from LaTeX sources

Emacs creates transient files when there are unsaved changes in a
buffer. For example, a buffer visiting the file 'main.tex' will create a
tempfile '.#main.tex' when there are unsaved changes. This patch causes
.tex files beginning with '.' to be ignored from the sources list.
report: Set TOC depth to section level
report: Write abstract
build/report: Exclude flycheck files from sources
report: Minor abstract rewording
report/introduction: Clearer figure labels
report: Write introduction
report/infrastructure: Annotate Markov listings