Update lhapdf specfile.

- Use github mirror to fetch sources.
- Remove obsolete lhapdf patches and cleanup spec.
- Fix autoreconf issue.
Revert "Merge pull request #818 from nclopezo/update-Fireworks-Geometry-data-70X"

This reverts commit 0f8c558699ccdb8a629753fa5c67f7f1c3ad731f, reversing
changes made to 646604faecfc85a783832b7577ddddb64fe3c910.
Merge pull request #823 from ktf/fix-lhapdf

Update lhapdf specfile.
Merge pull request #824 from nclopezo/revert-change-data-Fireworks-Geometry

Revert "Merge pull request #818 from nclopezo/update-Fireworks-Geometry-...
Merge remote branch 'origin/IB/CMSSW_7_0_X/stable' into IB/CMSSW_7_0_X/stable
Merge remote branch 'origin/IB/CMSSW_7_1_X/stable' into IB/CMSSW_7_0_X/stable
Merge remote branch 'origin/IB/CMSSW_7_2_X/stable' into IB/CMSSW_7_0_X/stable