attrs.xml - add listview header_row_layout and footer_row_layout
string.xml - add loading strings
JResource - change the way to create JDataModel
JListView - separate viewHelper creation into different method
JListViewHelper - add support for header and footer layout
JDataModel - add modelId of each model, add logic for initload and reload, add logic for limit and offset
add JImageView that uses Picasso to render image url
add
Merge branch 'master' of github.com:rockycubi/jelly