Bind correct object to "this"
Update handling of abstentions to maintain API compatibility
Use last defined color for diagram bars if there are more bars than
defined colors
Add colors for 7th and 8th answer option to diagram theme
Merge branch '1.0-stable'

Conflicts:
	src/main/websources/lib/thm.de/arsnova/presenter/ui/lecturerPaneAnswersTab.js
Update Jetty dependency
Change version for release: 1.0.7
Change version for development: 1.0.8-SNAPSHOT
Ignore version changes on stable branch when merging
Update Jetty dependency
Revert "Update Jetty dependency"

This reverts commit 46f851f39c8e7f854ba4ef9ed8f8c195fe081867. Jetty >=
9.0.5 causes problems with symlinks.