Recommend minimum of 1GB for the partition

SSIA
gcc > 4.8.1, not 4.8.0
Installation doc

So very much a work in progress. Committing because: commit early,
commit often.
Add memset to troubleshooting

Issue #89
Add __poll_chk_warn to troubleshooting

Issue #87
Merge pull request #91 from vmbrasseur/master

Many doc tweaks, initial work on the install doc