Using 0xBEEF is annoying in examples because it makes it makes it look
like the user can use ascii or something. In the Procfile use
0x0,0x1,0x2,etc and use 0xBAD0 in test.
This adds a build script that attempts to be as user friendly as
possible: if they have already set $GOPATH and/or $GOBIN, use those
environment variables. If not, create a gopath for them in this
directory. This should facilitate both `go get` and `git clone` usage.
The `test` script is updated, and the new `cover` script facilitates
easy coverage generation for the repo's constituent packages by setting
the PKG environment variable.
Why do this? `go test ./...` has a ton of annoying output:
```
? github.com/coreos/etcd [no test files]
? github.com/coreos/etcd/crc [no test files]
? github.com/coreos/etcd/elog [no test files]
? github.com/coreos/etcd/error [no test files]
ok github.com/coreos/etcd/etcdserver 0.267s
ok github.com/coreos/etcd/etcdserver/etcdhttp 0.022s
? github.com/coreos/etcd/etcdserver/etcdserverpb [no test files]
ok github.com/coreos/etcd/raft 0.157s
? github.com/coreos/etcd/raft/raftpb [no test files]
ok github.com/coreos/etcd/snap 0.018s
? github.com/coreos/etcd/snap/snappb [no test files]
third_party/code.google.com/p/gogoprotobuf/proto/testdata/test.pb.go🔢
undefined: __emptyarchive__.Extension
ok github.com/coreos/etcd/store 4.247s
ok
github.com/coreos/etcd/third_party/code.google.com/p/go.net/context
2.724s
FAIL
github.com/coreos/etcd/third_party/code.google.com/p/gogoprotobuf/proto
[build failed]
ok
github.com/coreos/etcd/third_party/github.com/stretchr/testify/assert
0.013s
ok github.com/coreos/etcd/wait 0.010s
ok github.com/coreos/etcd/wal 0.024s
? github.com/coreos/etcd/wal/walpb [no test files]
```
And we have no had to manually configure drone.io which I want to avoid:
https://drone.io/github.com/coreos/etcd/admin
