"read_only" field for API https://api.bitbucket.org/1.0/user/repositories/
"read_only" is always false, no matter weather if user's privilege is read/write/admin.
And It should be a more informational as privilege then just just "read_only" to tell difference between write and admin. Now Bitbucket has no API for user to know what kind privilege he/she have. This is a critical bug.