jsroot: mark as 3.5 version of JavaScript ROOT
jsroot: mark as 3.5 version of JavaScript ROOT

1. Test for existing jquery.js, jquery-ui.js and d3.js libraries, reuse
when provided
2. Introduce JSROOT.console function for debug output.
   Solves problem with older IE were console.log only availabe
   when developer tools are activated

Signed-off-by: Bertrand Bellenot <6715f273cb2881a3bfbd56f899a7173358fb0b89@cern.ch>

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