Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of https://github.com/CodaFi/mailcore2
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Only prepare the pre-requisites for the current SDKROOT
Revert "Only prepare the pre-requisites for the current SDKROOT"

This reverts commit 8d3a71cd9d0b83b7de71fca0e7f91dea1d7bf566.
Only prepare the pre-requisites for the current SDKROOT
Merge pull request #904 from antmd/master

Only prepare pre-requisites for the current SDK/platform
Merge pull request #902 from marcopifferi/master

Add support for SDK 8.1
Fixed race condition in OperationQueue (fixed #893)
Use final URL for prebuilt.list
Use final URL for prebuilt.list (bis)
IMAP sequence number methods
Workaround github connection issue
Fixed path
Fixed build
Fixed build (bis)