new project structure
update gradle files
remove and ignore gradle folder
remove some more gradle stuff
remove local.properties
add back gradle files
add empty root build.gradle (auto-generated)
Lowered minSdk to 7

Closes issue urbancups/action-send-gridview#3

@mderazon
updated readme.md for precedence
updated readme.md
Support api 11
support api 11
Merge branch 'refactor'