git ssb - Update installation docs for missing dependencies

Installation failed for me until I installed some extra dependencies. I have documented them here.

Anthony Finch authored on 4/17/2017, 7:41:20 PM
GitHub committed on 4/17/2017, 7:41:20 PM
Parent: 08b43d3973cbef30349b13a1d40910b39f00f01d

changed

scuttlebot/install.mdView
		@@ -7,8 +7,17 @@
7	7
8	8	Dependencies:
9	9
10	10	- node v4 and greater (you might like to use [nvm](https://github.com/creationix/nvm))
	11	+ - node-gyp (```npm install -g node-gyp```)
	12	+
	13	+*Linux Dependencies*
	14	+Installation may fail when building the libsodium dependencies due to missing aclocal. On Ubuntu you will need to run:
	15	+
	16	+```bash
	17	+sudo apt-get install autotools-dev
	18	+sudo apt-get install automake
	19	+```
11	20
12	21	Install:
13	22
14	23	```bash
		@@ -41,8 +50,17 @@
41	50
42	51	Dependencies:
43	52
44	53	- node v4 and greater (you might like to use [nvm](https://github.com/creationix/nvm))
	54	+ - node-gyp (```npm install -g node-gyp```)
	55	+
	56	+*Linux Dependencies*
	57	+Installation may fail when building the libsodium dependencies due to missing aclocal. On Ubuntu you will need to run:
	58	+
	59	+```bash
	60	+sudo apt-get install autotools-dev
	61	+sudo apt-get install automake
	62	+```
45	63
46	64	Install:
47	65
48	66	```bash
		@@ -75,5 +93,5 @@
75	93
76	94	```bash
77	95	git pull origin master
78	96	npm install
79		-```
	97	+```

cel / ssbc/docs