flight: add custom jshintrc

Ignores the "possible strict validations".

dependency-examples/flight/.jshintrc

+{
+	"node": true,
+	"browser": true,
+	"esnext": true,
+	"bitwise": true,
+	"camelcase": true,
+	"curly": true,
+	"eqeqeq": true,
+	"immed": true,
+	"indent": 4,
+	"latedef": true,
+	"newcap": true,
+	"noarg": true,
+	"quotmark": "single",
+	"regexp": true,
+	"undef": true,
+	"unused": true,
+	"strict": true,
+	"trailing": true,
+	"smarttabs": true,
+	"white": true,
+	"validthis": true
+}