Port REST referecne guid top.
Port rest user managing page.
add en/samples/ktimageview-ios
Port sign up page for REST API.
write managing-users other pages
fixed sign up page
replace english top page with page_url tag
Port sign in page for REST API.
add images
Add new line at the end of file.
Add png files for REST API sing up page.
written managing-groups pages
add en/guides top files
Merge pull request #8 from naoki-akimoto/managing-users_2

Managing users 2
Merge pull request #10 from naoki-akimoto/write_managing-groups

written managing-groups pages
Merge branch 'en-samples'
Change png file name.
Merge pull request #9 from shinsuke-nara/rest

Port REST API pages