vendor: add missing liencse/patent notices

vendor/github.com/beorn7/perks/LICENSE

@@ -0,0 +1,20 @@
+Copyright (C) 2013 Blake Mizerany
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

vendor/golang.org/x/net/PATENTS

@@ -0,0 +1,22 @@
+Additional IP Rights Grant (Patents)
+
+"This implementation" means the copyrightable works distributed by
+Google as part of the Go project.
+
+Google hereby grants to You a perpetual, worldwide, non-exclusive,
+no-charge, royalty-free, irrevocable (except as stated in this section)
+patent license to make, have made, use, offer to sell, sell, import,
+transfer and otherwise run, modify and propagate the contents of this
+implementation of Go, where such license applies only to those patent
+claims, both currently owned or controlled by Google and acquired in
+the future, licensable by Google that are necessarily infringed by this
+implementation of Go.  This grant does not include claims that would be
+infringed only as a consequence of further modification of this
+implementation.  If you or your agent or exclusive licensee institute or
+order or agree to the institution of patent litigation against any
+entity (including a cross-claim or counterclaim in a lawsuit) alleging
+that this implementation of Go or any code incorporated within this
+implementation of Go constitutes direct or contributory patent
+infringement, or inducement of patent infringement, then any patent
+rights granted to you under this License for this implementation of Go
+shall terminate as of the date such litigation is filed.

vendor/vendor.json

@@ -100,9 +100,10 @@
 			"revisionTime": "2015-08-20T12:44:31-07:00"
 		},
 		{
+			"checksumSHA1": "4QnLdmB1kG3N+KlDd1N+G9TWAGQ=",
 			"path": "github.com/beorn7/perks/quantile",
-			"revision": "b965b613227fddccbfffe13eae360ed3fa822f8d",
-			"revisionTime": "2015-02-23T14:51:52+01:00"
+			"revision": "3ac7bf7a47d159a033b107610db8a1b6575507a4",
+			"revisionTime": "2016-02-29T21:34:45Z"
 		},
 		{
 			"checksumSHA1": "1LWe3iDPpInibsVD1TzbTWSDXFc=",
@@ -286,14 +287,14 @@
 		{
 			"checksumSHA1": "9jjO5GjLa0XF/nfWihF02RoH4qc=",
 			"path": "golang.org/x/net/context",
-			"revision": "8aacbecd63e105fa5f07afbd49472fd3e17a19d1",
-			"revisionTime": "2016-05-18T19:54:31Z"
+			"revision": "b400c2eff1badec7022a8c8f5bea058b6315eed7",
+			"revisionTime": "2016-06-19T19:44:24Z"
 		},
 		{
 			"checksumSHA1": "Do+l129/Bafh54VFaquooqtCcfk=",
 			"path": "golang.org/x/net/context/ctxhttp",
-			"revision": "8aacbecd63e105fa5f07afbd49472fd3e17a19d1",
-			"revisionTime": "2016-05-18T19:54:31Z"
+			"revision": "b400c2eff1badec7022a8c8f5bea058b6315eed7",
+			"revisionTime": "2016-06-19T19:44:24Z"
 		},
 		{
 			"checksumSHA1": "QcDlr1sWBDt6Dn/v7W/MRgccAi4=",