v0.15.1-alpha8

• refator QuadTree (replace recursion with loop), a huge performance improvement in theory
• remove recursion in queries
• better Debug for shapes
• shapes with ID

v0.15.1-alpha7

• doc improvement

v0.15.1-alpha6

• simplify CollisionQuery trait
• improve documentation
• simplify dependencies
• type params check

v0.15.1-alpha5

• decouple Disassemble from CollisionQuery

v0.15.1-alpha4

• performance improvement
• fix bug in feature sprite
• fix bug caused by duplicate added updating system
• remove unnecessary type parameter in QuadTree::query

v0.15.1-alpha3

• fix doc mistakes
• remove unreachable impl for tuple