1.9.4

• fixes label backgrounds in rings and box (dd8cd6c)
• updates gulp-connect dev dependency (a1e6f4e)
• adds manual domain for size scale (closes #460) (5a6779f)
• adds support for non-zero bar chart axes (closes #480) (9090844)
• fixes multiple heatmaps overwriting eachother (closes #477 & #481) (120a0a2)
• sorts axis tick numbers in numeric order (477fc81)
• adds localizations for box plot (35b5185 & 29a4c8e)
• adds German localization (0dcbb7c)
• fixes line to scatter transition (closes #465) (679ad43)
• adds a unique ID to each data group (closes #466) (7ab5715)
• fixes custom textwrap split logic... again (#427) (54d8a61)
• adds "data" boolean to .legend( ) (6417f75)