Added Sections
Revert "Added Sections"

This reverts commit b469b570a3f24867e2242bb7a95455bc21e95002.
Merge branch 'master' of https://github.com/HoratiuCopaciu/RSSNewsReader
Removed Done button in DetailViewController
Added alert view for error message
Renamed RSSLoad Class name to Loader and methods loadArticleURL and cancelArticleURL to loadURL and cancel