flot: add fillbetween plugin

Flot plugin for computing bottoms for filled line and bar charts.

[Peter: fixup help text]
Signed-off-by: Arnaud Rébillout <rebillout@syscom.ch>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/flot/Config.in

@@ -20,6 +20,11 @@ if BR2_PACKAGE_FLOT
 
 comment "flot plugins"
 
+config BR2_PACKAGE_FLOT_FILLBETWEEN
+	bool "fillbetween"
+	help
+	  Flot plugin for computing bottoms for filled line and bar charts
+
 config BR2_PACKAGE_FLOT_NAVIGATE
 	bool "navigate"
 	help

package/flot/flot.mk

@@ -1,6 +1,7 @@
 FLOT_VERSION = 0.7
 FLOT_SITE = http://flot.googlecode.com/files
 FLOT_FILES = jquery.flot $(addprefix jquery.flot.,\
+	$(if $(BR2_PACKAGE_FLOT_FILLBETWEEN),fillbetween) \
 	$(if $(BR2_PACKAGE_FLOT_NAVIGATE),navigate) \
 	$(if $(BR2_PACKAGE_FLOT_PIE),pie) \
 	$(if $(BR2_PACKAGE_FLOT_RESIZE),resize) \