Update debian package

 * Add new entry for 0.22 version (debian/changelog)
 * Upgrade debian compat version from 6 to 8 (debian/compat)
 * Change debian package maintainer (debian/control)
 * Remove cdbs dependency (debian/control, debian/rules)
 * Update build-dependencies according to packages listed in CMake files (debian/control)
 * Upgrade debian's standards version (-> 3.9.3)
 * Update all links: homepage, git, vcs browser (debian/control)
 * Update debian's package copyright according to debian's standards (debian/copyright)
 * Add .gitingore in debian/