v0.1.5

• es5 to es2015 5f06ed7
• rename 694750f
• update versin to v0.1.3 8b5ac01
• update to version v0.1.2 a1f8029
• update version 8b7f1eb
• add number and capacity 50eb81a
• add .gitignore fabde75

da448d4...v0.1.5