Added FlyWeightPatternDemo class
Merge pull request #1 from qijinqq/develop

OK. Let's merge.
Added ProxyPatternDemo
Merge pull request #2 from qijinqq/develop

Added ProxyPatternDemo
Added ChainOfResponsibility.java and modified ProxyPatternDemo.java
Added CommandPatternDemo.java and english.xml
Merge pull request #3 from qijinqq/develop

OK. let's merge
Merge pull request #3 from qijinqq/master

OK. Let's merge.