chart 7.x-1.1

Changes since 7.x-1.0:

• #587742: Use protocol relative Google Chart API URL.
• Fixed negative division in _chart_adjust_resolution
• Fixed chts, chxl, chxp, and set undefined notices, 1103966
• Apply 868092 and 1245722. Remove extra rounding,and add a/r to #bar_size
• Changing NULL checks to is_numeric
• Applied patches from 1245604, 1245672, 1247036, 1205408, and 1123192. Minor PHP notices, and minor features.
• Add color scheme option to view.
• Group row data.
• Remove last reference to $row->key and replace with $row->{->field_alias}.
• If only one set then use the view title as the chart title.
• Add a 0.05 margin to auto-scaled data.
• Add hook_chart_views_alter().
• Check for views fields that are excluded.
• Default #adjust_resultion to TRUE on views chart.
• Correct views plugin data extraction.
• Properly document chart_types().
• Sync, update, and use constants for keys in chart_types().
• #587742: Update CHART_URI constant for more recent url.