JD-Core 1.1.1

This release includes the following changes:

• Addition of a part of the test protocol described in this research paper : The Strengths and Behavioral Quirks of Java Bytecode Decompilers
• Improved recompilation of decompiled source codes
• Decompiling and recompiling org.apache.commons:commons-collections4:4.1 without any errors
• Quick fixes after release 1.1.0