Merge pull request #34 from bitsofproof/master

still missing from 1.1
-removing generated source code from the repository
-fixing up maven build to properly build protobuf files and put them in target/generated-sources
-updating version of protoc used, since the committed files were depending on classes which only exist in protobuf 2.5+, not 2.4.1
 -ignoring IntelliJ project files
Merge branch '1.1' of https://github.com/senecaso/supernode into senecaso-1.1
do not hardcode protobuf compiler path. use java 7