update playground add rotated text
fix defect in pagination

when server side store used, paginationIntialPageSize argument won't
work as expected,
that is because when server side store used, pagination's load function
will be run after the bar's load function. pagination has dependency to
view module
Merge branch 'master' of https://github.com/oria/gridx
Fix indirect select throw error when grid goes empty
add hover prompt to object config module
Merge branch 'master' of https://github.com/oria/gridx
Fix pagination initialPageSize and initialPage for async store
update playgournd config
Merge branch 'master' of https://github.com/oria/gridx
Fix some rare case that the scroll bar is missing
Update doh framework
Fix sortInitialOrder descending arrow bug
Update doh framework
move doh framework to tools branch
Update api doc
Fix indirect select not clear partial when clear row selection
merge from master