Fix links in old posts.
Small change in a page title.
Update the post about booting Linux from Windows.
Update the post about LVM.
Update the post about Jekyll on GH Pages.
Update the post about Heroku.
Update the post about OpenShift.
Update the post about Juvia commenting system.
Fix the look of footer when it becomes too narrow.
Update Jekyll gem up to v1.3.0.
Update configuration due to features of Jekyll 1.3.0.