• Update to 2.1.4 [1]
• Convert Makefile headers to new style
• Remove LICENSE_FILE since GPLv3 is in Templates/Licenses
• Remove ABI version numbers from LIB_DEPENDS

PR: ports/174612 (based on) [1]
Submitted by: Thomas Dreibholz <dreibh@iem.uni-due.de> (maintainer)