Added other common acronyms

Added acronyms for:

- be back in a bit
- be back in a flash/few
- be back soon
Removed bbs as it is ambiguous with 'bulletin board system'.
Merge pull request #1226 from monokrome/patch-2

Added other common acronyms
Add more error checking, and more descriptive reasons for failure
Merge pull request #1230 from github/meme_generator_errors

[meme_generator] Better error handling
Version bump to 2.5.7
Fix tense

Since the message was said in the past, make it past tense.
Fix indentation

Fix indentation so that the text appears properly in the hubot script catalog.
boot -> bot
Add documentation header, fix regex

The old regex `(went|go(ing|es))?` won't match on `go for it` and would match on ` for it`. This fixes that.

Also added a documentation header.
Add missing quote
Fix header indentation
Merge pull request #1234 from rgbkrk/patch-1

Fix tense
Merge pull request #1236 from rgbkrk/patch-3

boot -> bot
Merge pull request #1237 from rgbkrk/patch-4

Add documentation header, fix regex
Merge pull request #1238 from rgbkrk/patch-5

Add missing quote
Merge pull request #1239 from rgbkrk/patch-6

Fix header indentation
Fixed command (robot.respond used instead of robot.hear)
Merge pull request #1235 from rgbkrk/patch-2

hubot beer me! Also, fix indentation.
Replace !== with ? (the coffeescript null check)
!== causes compilation problems with the most recent version of coffeescript and hubot

Mon Dec 02 2013 16:04:50 GMT-0800 (PST)] ERROR Unable to load /src/hubot-scripts/src/scripts/polite: SyntaxError: unexpected =
  at Object.exports.throwSyntaxError (/src/hubot/node_modules/coffee-script/lib/coffee-script/helpers.js:197:13)
  at Object.parser.yy.parseError (/src/hubot/node_modules/coffee-script/lib/coffee-script/coffee-script.js:265:20)
  at Object.parse (/src/hubot/node_modules/coffee-script/lib/coffee-script/parser.js:537:22)
  at exports.compile.compile (/src/hubot/node_modules/coffee-script/lib/coffee-script/coffee-script.js:35:24)
  at Object.loadFile (/src/hubot/node_modules/coffee-script/lib/coffee-script/coffee-script.js:176:14)
  at Module.load (/src/hubot/node_modules/coffee-script/lib/coffee-script/coffee-script.js:211:36)
  at Function.Module._load (module.js:312:12)
  at Module.require (module.js:364:17)
  at require (module.js:380:17)
  at Robot.loadFile (/src/hubot/src/robot.coffee:181:9, <js>:133:11)
  at Robot.loadHubotScripts (/src/hubot/src/robot.coffee:208:7, <js>:166:28)
  at /src/hubot/bin/hubot:98:15, <js>:99:30
  at fs.js:266:14
  at Object.oncomplete (fs.js:107:15)