added random xkcd function using "*" as the param
Will get a random comic from http://dynamic.xkcd.com/random/comic/
Needs testing
Further automate the install script

* config.json is now created in the correct location
* config.json is only created if it doesn't already exist
* vim launches to edit config.json on first install
* User is prompted to run depressionbot directly from the script
Merge pull request #255 from zuzak/upstream

Further automate the install script
fixed xkcd random and updated readme for link
Reverted file
updated xkcd random to use dbot api instead of function call.
Update modules/link/link.js

indent fix test
Update modules/link/link.js

Tab fix attempt 2
Update modules/link/link.js

Tab fix three: Revenge of the tabs
Merge branch 'master' of https://github.com/WelshMullet/depressionbot
Cleaned up code based on feedback.
Cleaned up link slightly.
Added check for params[1] to ~xkcd
Merge branch 'master' of https://github.com/WelshMullet/depressionbot
couple of formatting fixes + fix indentation [Close #258]
rebump jsbot and that
remove unnecessary else
Merge remote branch 'upstream/master' into rain