As it seems to be something that many people can't get over, reformat
all the files; as we're breaking things, whoever depended on 'next' will
have to take many changes into account anyway, so let's include this to
reduce the noise of incoming patches.
Some test repositories are not correctly removed after the tests
did run. Fix by introducing a function that is to be used for
cleaning up temporary test repositories.
There's been some changes to the checkout strategy, especially the
SAFE_CREATE mode, which is now the RECREATE_MISSING flag, though that
shouldn't be necessary to use in the general case.
The largest changes come from the removal of the signture from
ref-modifying functions/methods and the removal of the reflog string in
all but those directly related to moving references.
While Go will assign the correct type to a const block when it
auto-creates the values, assigning makes the const be typeless and will
only gain it in each particular use.
Make each constant in the blocks have an assigned type.
The option to ignore the server's certificate has been removed, replaced
witha callback for the user to perform their own checking.
Remote.Fetch() now performs opportunistic updates and takes a list of
refspecs to use as the active set for a particular fetch.