add options for preferences and stack/withoutStack and toggeling
finale changes: conf aliases and highlight several points
stacks problem fix and custom axis
customising label size. adding axis label. highlight bug fixed.

customising testcase 'Flot Stack' page with 3 Stacking charts and 1
fastalble containing new example data
Configuring chartjs lib. adding Chartjs module
Merge pull request #91 from khaliiid/gh-pages

add options for preferences and stack/withoutStack and toggeling