Fixed API break in AutoDirectionHandler.Target

As part of the GWT module breakup for modular compilation, the I18n
module was updated to not depend on User. This involved changing
AutoDirectionHandler.Target to no longer depend on HasText. While
the getText() method was added in the initial patch, this left
Target subclasses with an @Override'd setText broken. This patch
allows implementors of Target that are compatible with GWT <=2.6 to
build with 2.7.

See fc1babac93730ec48fe5d56d6c22b3657db9e68a for the original change.

Change-Id: I7f3e62b590153dd3fd4a9de89c2b7b05628bb260
Use goal "install" when deploying to local-maven-repo

Using "deploy" instead of "install" only works with non-snapshot version
numbers, because it seems that maven does not use metadata when using
snapshots from the local cache folder.

Removed an invalid parameter for "read" command in lib-gwt
which does not work in osx version of bash.

Change-Id: I6829dacbecf88c397af566c87eddf7094d4194ce