New engine port of timestore to php
Fix last value
Added phptimestore definition
$timestamp instead of $time
Fix stupid plot line colour issues. Apparently some browsers (chrome) don't need "#" prepended to hex colours, and other do. What the hell?
Merge branch 'master' of https://github.com/emoncms/emoncms

Minor cleanup on merged changes. Next commit will have complete cleanup of the new PHPTimestore.php file.
Cleaned up indentation. Again. Seriously.... tabs AND spaces mixed randomly? What the hell? At least chose *one* and stick with it.