2.0.0

• Add getCapabilities and getBoundingBox methods
• Add new and refactor old filters: Equals, Disjoint, Touches, Within, Overlaps, Crosses, Intersects, Contains, Dwithin, Beyond, BBox, GmlObjectID, Add, Sub, Mul, Div, EQ, NotEQ, LT, GT, LEQ, GEQ, Like, IsNull, IsBetween, And, Or, Not, Function