0.2.1 – Boosted flame chart performance and fixes

• Added count badges and tweaked numeric captions
• Reworked flamechart view to improve performance especially on large datasets (eliminated double "renders" in some cases, a lot of unnecessary computations and other optimisations)
• Changed behaviour in flamechart when click on already selected frame to select previously selected frame with a lower depth
• Fixed flamechart's view height updating when stack depth is growing on zoom
• Fixed processing of profiles when call frame scriptId is a non-numeric string
• Bumped discoveryjs to 1.0.0-beta.65