fixed visual issue in Firefox that the x-axis and the y-axis title is in odd location
fixed visual issue in Firefox of the legends
Merge branch 'fix/firefox'
Version 0.0.12
Fixed an odd display issue when specify a Y-Axis title only, without a X-Axis title.
Merge branch 'fix/firefox'

Conflicts:
	lib/veasy.js
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Version v0.0.13

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