handle -r option; ok joris@

Merge the cvs_cmd and cvs_cmd_info structures and add the necessary
fields to hook local versions of the commands. This needs to go in
before it gets any bigger

ok joris

correct wrong error code usage.

ok jfb@, xsa@

execute the command callback at the same time we are building
the in-memory filelist. cuts down on execution time for larger trees.

"put it in!" jfb@

don't send a Modified request and the file its contents when
it has been removed.

add missing CVS_CMD_ALLOWSPEC flag

handle removed files as well when checking files to commit

ok joris

remove debug code

make sure we pick up newly added files.

Modify the CVSFILE structure using a union to keep information about
both files and directories. We can now keep the revision number for
regular files, and don't need to fetch the appropriate entry

Modify the CVSFILE structure using a union to keep information about
both files and directories. We can now keep the revision number for
regular files, and don't need to fetch the appropriate entry in the
command callbacks. This saves a huge amount of parsing on Entries
files.

ok joris@

show more ...

missing cvs_ent_free(); joris ok

snprintf() return values checks; joris ok

introduce our own set of error codes used by the commands to report
what exactly went wrong in case of an error.

ok jfb@

don't include sysexits.h now we don't use those error codes
anymore.

remove EX_USAGE error codes

ok jfb@

first round of EX_* exit codes removal; ok joris@.

fix prototype for cvs_commit_prepare()

move all the client commands to the new command framework.
eliminates a lot of duplicate code.

ok jfb@

fix memleak

ok jfb@

- make sure we are using a remote method before calling
cvs_sendreq() and cvs_sendfile().
- don't leak entp on errors.

ok jfb@

more error checking on protocol calls when running in client mode

more widespread use of cvs_msg, and free it when we are done

diff by Joris Vink and me

modify the directory handling portion to behave like the one in add.c,
which does not attempt to send data when running on a local
repository. This will be needed to support local repository access

First attempt at syncing the command code and doing a lot more error
checking on all the protocol calls

return early if no files are ready to be commited