remove unused panels

Signed-off-by: VampireNeo <neo.choi@gmail.com>
Can display articles with thumbnails
Make it able to click into an article
adjust layout of articles
remove timer and logout
completed article detail view basic function

need fine tune to display performance
1. use textview to display html contents with images
2. sort the article list, latest on the top
make the article detail view scrollable
Merge branch 'feature/useTextViewForArticleDetail' into develop
Upgrade AndroidBootstrap
Added back the developed code
Merge branch 'feature/UpgradeAndroidBootstrap' into develop
1. add sorting for articles
2. add drop down box for article list
3. add date for article details
1. adjust the layout of article list
2. add channels list

todo: display channels correctly
1. show articles by default
2. temp. remove image of channels to make it can display

todo: make the images of channel can display
todo: channel detail
todo: change the drop down box to display only view article list
fixed the image display issue of channels
change channel id to integer
fine tune to layout of article list
fine tune the layout of channel list
adjust layout of article and channel list