Use debhelper 7 (dh) command:

* Use debhelper 7 (dh) command:
  - d/rules: Use dh -with autotools_dev --with autoreconf.
  - d/control: Build-Depends on autotools-dev and dh-autoreconf.
  - d/*.install: Remove no needed anymore.
* Set myself as Maintainer.
* Use default-jdk for build:
  - d/control: Build-Depends on default-jdk
  - d/rules: Set JAVA_HOME to /usr/lib/jvm/default-jdk