Change jarjar version to 1.4 to support building with java 8.
am: 195a49a

* commit '195a49ab2c2c59c4dc1178a47c0ad83aba9de93c':
  Change jarjar version to 1.4 to support building with java 8.

Change-Id: Iff44e13338850c6540459abf490803b0afe0d83f