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License: MIT
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>

There can be non-terminal (i.e. non-interactive) sessions
that are *not* a pipe, for example:

	ssh user@host ipfs version

In this case, it looks like we should read from stdin.
Parsing stdin is accomplished by deliberately triggering
the parsing loop once.

We didn't previously check whether there is an ArgDef to support
that loop iteration.

This should fix issue #1196 (Can't launch a command line
process from Qt).

The check was bad because it took stdin into account,
but it really shouldn't.

License: MIT
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>

License: MIT
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>

This should fix issue #1141 (ipfs cat "multihash too short"
error when using stdin) and perhaps others.

License: MIT
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>

- Modified Godeps/Godeps.json by hand
- [TEST] Updated welcome docs hash to sharness
- [TEST] Updated contact doc
- [TEST] disabled breaking test (t0080-repo refs local)

squash! commands/files: Added PeekFile and StatFile interfaces

commands/http: Updated test

I made the commands lib dir listing sort the contents
so we get the same sequence of files from it repeatably.

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>

@mappum

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>

Attention @maybebtc @mappum

I cleaned up + simplified the main flow. Now, all printing
is contained inside main itself! (:cheer:). I do this with
the help of a cmdInvocation struct that has both
a Parse and Run. The only major clunkiness left is that the
"CallCommand" is still its own function. But *shrug*.

Please test it works as we would expect. i changed much of
the flow, so likely that i missed a complicated edge case.

main roadmap:
- parse the commandline to get a cmdInvocation
- if user requests, help, print it and exit.
- run the command invocation
- output the response
- if anything fails, print error, maybe with help