ADD call method to meocloud.go

This call allows us to remove a lot repetitive code hence the following
files were deleted.

-  account.go
- fileops.go
- files.go
- links.go
- metadata.go
- shares.go
- store.go

inspect the main/main.go file to see how this affect the way we use meocloud.go

Signed-off-by: José Pinheiro Neta <jose.neta@gmail.com>
FIX README

Effing `fmt` insits in putting tabs(8spaces) for identation and
blank for alingments.

Ref.: [What a mess]http://golang.org/cmd/gofmt/

Signed-off-by: José Pinheiro Neta <jose.neta@gmail.com>