v0.2.0: Redesign, multiple entities, animations & more

• UI redesign
• Added: support for multiple entities (BETA) #28
• Added: support for multiple line_color entries
• Added: graph data points with information on hover, see points option under the show option
• Added: animate option to have the graph animated on initial load
• Added: points_per_hour option to specify amount of data points that should be rendered for each hour (basically the graph detail/accuracy).
• Added: support for multiple color thresholds with new line_color_above & line_color_below options
• Added: allocated space for the graph -> less jerky movements when loading in
• Added: graph legend, visible if multiple entities is present
• Added: align_header, align_icon & align_state options #27
• Added: show option, to manage visible/hidden UI elements
• Added: entities option
• Added: group option to remove paddings/box-shadow #26 (@iantrich)
• Fixed: bug were history data would be fetched when graph was hidden
• Fixed: decimals option not being applied to labels #19
• Fixed: Y-scale based on absolute extrema causing inconsistent results, now based on moving average same as the rest of the graph.
• Deprecated: entity option, use new entities, accepts string or list (deprecated)
• Removed: detail option, use new points_per_hour option (Breaking change)
• Removed: hide options, use new show option (Breaking change)
• Removed: labels option, use labels in new show option (Breaking change)
• Removed: line_value_above, line_color_above, line_value_below & line_color_below options (Breaking change)