Move w3schools help link to header as not to repeat it for every row.

Also fixes an HTML syntax issue.
Only invoke jscolor if browser does not support HTML5 color element.

HTML5 color element and jscolor will conflict otherwise.
Prevet notices when there's no active contest.
Remove $cdatas global from submit solution.

The cid is passed in, so we don't need to depend on ugly globals to
get the info we need.
Move checktestdata documentation to the checktestdata repo.
Fix download of team output.
Fix make install-docs by removing recursion to misc-tools/.
Remove checktestdata grammar appendix include from judge manual.
Update description of config setting show_affiliations.
Merge branch 'master' into ICPC-live

Conflicts:
	Makefile
	lib/lib.misc.php
	sql/mysql_db_defaultdata.sql
Merge branch 'ICPC-live' of github.com:DOMjudge/domjudge into ICPC-live