[pom] Updated proguard-maven-plugin to 2.0.11
[pom] Updated proguard-maven-plugin to 2.0.11

ctubbsii/formatter-maven-plugin,hazendaz/formatter-maven-plugin,hazendaz/formatter-maven-plugin,revelc/formatter-maven-plugin,ctubbsii/formatter-maven-plugin,ctubbsii/formatter-maven-plugin,hazendaz/formatter-maven-plugin,revelc/formatter-maven-plugin,hazendaz/formatter-maven-plugin,ctubbsii/formatter-maven-plugin,revelc/formatter-maven-plugin,revelc/formatter-maven-plugin