Bump githubot version on all scripts.

There shouldn't be any backwards incompatibilities, and I tested most of
these cursorily. Will fix a few bugs.

Author: iangreenleaf

src/scripts/github-activity.coffee

@@ -3,7 +3,7 @@
 #
 # Dependencies:
 #   "date-utils": ">=1.2.5"
-#   "githubot": "0.2.0"
+#   "githubot": "0.4.x"
 # 
 # Configuration:
 #   HUBOT_GITHUB_TOKEN

src/scripts/github-commit-link.coffee

@@ -3,7 +3,7 @@
 #   repo. Eg. "Hey guys check out commit 251a8fb"
 #
 # Dependencies:
-#   "githubot": "0.2.0"
+#   "githubot": "0.4.x"
 #
 # Configuration:
 #   HUBOT_GITHUB_REPO

src/scripts/github-commiters.coffee

@@ -2,7 +2,7 @@
 #   Show the commiters from a repo
 #
 # Dependencies:
-#   "githubot": "0.2.0"
+#   "githubot": "0.4.x"
 #
 # Configuration:
 #   HUBOT_GITHUB_TOKEN

src/scripts/github-issue-link.coffee

@@ -4,7 +4,7 @@
 #   Defaults to issues in HUBOT_GITHUB_REPO, unless a repo is specified Eg. "Hey guys, check out awesome-repo#273"
 #
 # Dependencies:
-#   "githubot": "0.2.0"
+#   "githubot": "0.4.x"
 #
 # Configuration:
 #   HUBOT_GITHUB_REPO
@@ -51,4 +51,4 @@ module.exports = (robot) ->
          url = "https://github.com"
        else
          url = base_url.replace /\/api\/v3/, ''
-       msg.send "Issue #{issue_number}: #{issue_title} #{url}/#{bot_github_repo}/issues/#{issue_number}"
+       msg.send "Issue #{issue_number}: #{issue_title} #{url}/#{bot_github_repo}/issues/#{issue_number}"

src/scripts/github-issues.coffee

@@ -4,7 +4,7 @@
 # Dependencies:
 #   "underscore": "1.3.3"
 #   "underscore.string": "2.1.1"
-#   "githubot": "0.4.0"
+#   "githubot": "0.4.x"
 #
 # Configuration:
 #   HUBOT_GITHUB_TOKEN

src/scripts/github-merge.coffee

@@ -2,7 +2,7 @@
 #   Integrate with GitHub merge API
 #
 # Dependencies:
-#   "githubot": "0.2.0"
+#   "githubot": "0.4.x"
 #
 # Configuration:
 #   HUBOT_GITHUB_TOKEN

src/scripts/github-pulls.coffee

@@ -2,7 +2,7 @@
 #   Show open pull requests from a Github repository or organization
 #
 # Dependencies:
-#   "githubot": "0.2.0"
+#   "githubot": "0.4.x"
 #
 # Configuration:
 #   HUBOT_GITHUB_TOKEN