Merge pull request #50 from adrianbanks/make-speaker-icons-bigger

Increase the size of the speaker icon on the session details
Merge pull request #48 from adrianbanks/issues/44

Fix #44: add a link to the github issues page in the footer
Merge branch 'optimise-images' of git://github.com/adrianbanks/dddeastanglia into adrianbanks-optimise-images

Conflicts:
	DDDEastAnglia/Images/sponsors/skillsmatter.png

I resolved this in the only way that was offered: adding the file to the
index and continuing the rebase. The image may be out of date.
Merge pull request #55 from adrianbanks/issues/43

Fix #43: Prepend the @ symbol to the textbox