Added deleteAll and transaction support
Added junit dependency
jUnit and Hamcrest added to IntelliJ project
Refined ProtobufPersistence interface and added abstract class to hold shared persistence functionality
Added in memory store
Added test protobuf class and script to build Java classes from it
Added initial set of tests for basic functionality in the in-memory store
Merge branch 'master' into adding-in-memory-version

Conflicts:
	src/main/java/com/timmattison/proto2sql/sql/PostgresqlProtobufPersistence.java
	src/main/java/com/timmattison/proto2sql/sql/ProtobufPersistence.java
Merge pull request #1 from timmattison/adding-in-memory-version

Adding in memory version