Add link to installation page to README
Turn download url into link.
Merge remote-tracking branch 'upstream/master'
Add BUILD.md for build from source instructions
[bugfix][RHEL7] Update Red Hat references

- Update RHEL6 and Red Hat Enterprise Linux 6 references to RHEL 7
- Update Red Hat Enterprise Linux 6 links to point to Red Hat Enterprise Linux 7 documentation
Merge pull request #220 from redhatrises/update_references

[bugfix][RHEL7] Update Red Hat references
Merge pull request #214 from gregelin/ge-build

Add BUILD.md with build from source instructions
Removing fedorahosted URL