Merge pull request #259 from pdvyas/wsgi

more fixes
[attachment] added option to specify size as max_attachment_width, max_attachment_height for images
[profile] Always use link verification for new user
[profile] Always use link verification for new user
[install] [minor] ability to reinstall fixtures
[install] [minor] ability to reinstall fixtures
[import] [minor] fixes to aid migration
[import] [minor] fixes to aid migration
[import] [minor] fixes to aid migration
[import] [minor] fixes to aid migration
refactor report view to make it thread safe
refactor doctype to make it thread safe
refactor for webnotes.conn.sql