update to 7.10.3 from petersen/ghc-7.10.3 copr
    
    - quick build
    - use 7.10.3b respin tarballs
    - no longer need:
      - ghc-glibc-2.20_BSD_SOURCE.patch
      - ghc-7.8-arm-use-ld-gold.patch
      - ghc-7.8-arm7_saner-linker-opt-handling-9873.patch
      - ghc-config.mk.in-Enable-SMP-and-GHCi-support-for-Aarch64.patch
      - build_minimum_smp
    - add Debian packages:
      - buildpath-abi-stability
      - no-missing-haddock-file-warning
      - reproducible-tmp-names
    - use llvm35
    - add libraries-versions.sh script
    - all library versions updates except xhtml
    - BR ghc-rpm-macros-extra for all OS versions
    - support building on EL6
    - deprecated libraries: haskell2010, haskell98, old-locale, old-time
    - symlink for integer-gmp2
    - add llvm_major