add couchbase-lite-java-core submodule
update .gitignore
add gradlew
add dependency to java-core submodule
point to latest commit on new_master of java-core submodule
change to use java gradle plugin
remove android related assets that are no longer needed
add maven artifact dependencies on server and webserver in couchbase maven repo
upload maven artifacts for the listener module, make @yarong one happy man
repoint submodule for rename couchbase-lite-android-core -> couchbase-lite-java-core
update to latest commit on couchbase-lite-java-core master branch