[CB-4038] - Remove o.a.c.api namespace
added files from org.apache.core.file name space & updated config
CB-3724: Fixing exceptions so that they have the right Java package name
fixed issue with new isBinary param to write method
[wp] update comments with proper args
ignore stuff
updated readme
[CB-4367] Explicit AssetsLibrary.framework dependency should be specified for some core plugins
[CB-4366] Explicit MobileCoreServices.framework dependency should be specified for some core plugins