Some further tweaks to time series handling, implemented support for tickSize and minTickSize, automatic detection of no. ticks

git-svn-id: https://flot.googlecode.com/svn/trunk@45 1e0a6537-2640-0410-bfb7-f154510ff394

Documented the date support, tweaking the API a bit in the process, deprecated noTicks in favour of a numerical parameter to ticks

git-svn-id: https://flot.googlecode.com/svn/trunk@44 1e0a6537-2640-0410-bfb7-f154510ff394

git-svn-id: https://flot.googlecode.com/svn/trunk@43 1e0a6537-2640-0410-bfb7-f154510ff394