Unread items to be readable from oldest to newset

Added new config parameter (unread_order) to be able to read unread
items from oldest to newest
Added a global error bar at the top

Global error bar used to display all error messages
instead of a javasript alert. Fixes #201.
Merge branch 'master' of https://github.com/SSilence/selfoss
add font type for chromium/chrome
add font type for chromium/chrome
Merge branch 'master' of github.com:mcnesium/selfoss
Merge branch 'master' of github.com:mcnesium/selfoss
Merge branch 'master' of github.com:mcnesium/selfoss
newline -.-
Merge pull request #407 from mcnesium/master

add font type for chromium/chrome
Merge pull request #406 from tamizhgeek/master

Fixes #201 and adds a global error bar at the top
readme update
improve error message styling
Add support for fullscreen Webapp on iPhone 5

Refers to Issue #409 where the Webapp on an iPhone 5 started from
Springboard starts letterboxed.
Fixes #362

While importing feeds from OPML check whether a source with same
title, spout and url is existing to avoid creating duplicate
sources.
Fixes #401. Prevents a reflected XSS vulnerability in search field.
Update reddit2.php
fix 'Undefined Index' error in item tpl when no shares available
preg_replace /e is deprecated in php5.5
preg_replace /e is deprecated in php5.5