Implementation updates and bower dependency fix#1

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Commits on Jun 22, 2013

Added missing bower dependencies. Initial implementation of tooltips using d3-tip. Updated readme.
fskreuz
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Extracted most of the variable settings into a default but overridable config object.
fskreuz
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Commits on Jun 23, 2013

First prototypes for pie and stacked charts.
fskreuz
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Commits on Jul 7, 2013

First implementation of process segment container charts.
fskreuz
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