Add Pager at the bottom of the page

* Next link is displayed only when there are more pages to see
* Back link is displayed only when there are more pages to see
Remove overriden background
Wrap post title and post date and add "Read Full post" link
Style posts list, not sure about the colors :|
Cleaner layout for posts
Enforce a better pattern of blue tones

* Delete duplicated / commented attributes
* Set same ton of blue for all links on hover
* Set Darker blue to content links
* Set lighter gray to post-header border-bottom (same as footer)
Change link colors to darker blue
Define global font-family