Added support for Sectioned Lists
Simplified SectionListItem
Added createAdapter in ListComponent and unexposed view
Renamed ListItemGenerator
Header animation also added in the Renderer
Added SectionListGroup
SectionListItemGenerator creates the list of group and gives it to the SectionListComponent
SectionListComponent flattens the group into list of SectionListItems and gives it to the adapter to create view and render the items
Fixed the init/createAdapter in ListComponent to be consistent.
Added constructor for SectionListItem
Renamed ListItemGenerator
Added SectionListItemDataSource.java
Merge branch 'master' of https://github.com/sarality/appblocks into SectionComponent
Formatting changes
Merge pull request #128 from sarality/SectionComponent

Added support for Sectioned Lists