objectweb-anttask-1.2-bp151.1.1

- Specify java source and target level 1.6 in order to allow
  building with jdk9
- Removed patch:
  * objectweb-anttask-java14compat.patch
    + Do not hardcode java source and target levels; we specify
    them on command-line
  * objectweb-anttask-java5.patch
    + Rename enum -> emun, since "enum" is a keyword in java5+
  + Fix "no suitable method found for put(String,String) ...
    argument mismatch; String cannot be converted to String[]"
    with java5+

- Build with gcc-java as openjdk7 (1.7.0_40) fails to build it

- hack to build with ant-1.7 (MultipleCopy works only for FileSets
  not for real ResourceCollection yet)

- added unzip to buildreq

- don't use icecream
- fix BuildRequires: add xalan-j2
- use source="1.4" and target="1.4" for build with java 1.5

- converted neededforbuild to BuildRequires

- Current version 1.2 from JPackage.org