Fix prompt coloring on Windows

MSP-11669

Set output stream for RbReadline (rl_outstream) to the
Rex::Ui::Text::Output::Stdio, which will use translate the ANSI color
escapes to set_color calls in Windows.

![screen shot 2014-12-08 at 12 38 00 pm](https://cloud.githubusercontent.com/assets/2230482/5346980/9bc01c06-7eea-11e4-84d6-c9b5e7557539.png)


# Verification Steps

## Linux/OSX

### rb-readline
- [x] `msfconsole`
- [x] VERIFY prompt is colored
- [x] `use exploit/<TAB><TAB>`
- [x] `<y>`
- [x] VERIFY pager is displayed
- [x] VERIFY `--More--` is printed at bottom of page
- [x] `<SPACE>`
- [x] VERIFY next page is shown
- [x] `<q>`
- [x] VERIFY pager goes away and prompt restored with `use exploit/`
- [x] `use exploit/windows/smb/ms08_067_netapi`
- [x] VERIFY prompt changes to show shortname (ms08_067_netapi) in red in prompt.
- [x] `exit`

### GNU readline
- [x] `msfconsole -L`
- [x] VERIFY prompt is colored
- [x] `use exploit/<TAB><TAB>`
- [x] `<y>`
- [x] VERIFY pager is displayed
- [x] VERIFY `--More--` is printed at bottom of page
- [x] `<SPACE>`
- [x] VERIFY next page is shown
- [x] `<q>`
- [x] VERIFY pager goes away and prompt restored with `use exploit/`
- [x] `use exploit/windows/smb/ms08_067_netapi`
- [x] VERIFY prompt changes to show shortname (ms08_067_netapi) in red in prompt.
- [x] `exit`

## Windows

### Patch
- [ ] Upload lib/rex/ui/text/output/stdio.rb to C:\metasploit\apps\pro\msf3\lib\rex\ui\text\output\stdio.rb
- [ ] Upload lib/rex/ui/text/input/readline.rb to C:\metasploit\apps\pro\msf3\lib\rex\ui\text\input\readline.rb

### Test
- [x] Start > All Programms > Metasploit > Metasploit Console 
- [x] `msfconsole`
- [x] VERIFY prompt is colored
- [x] `use exploit/<TAB><TAB>`
- [x] `<y>`
- [x] VERIFY pager is displayed
- [x] VERIFY `--More--` is printed at bottom of page
- [x] `<SPACE>`
- [x] VERIFY next page is shown
- [x] `<q>`
- [x] VERIFY pager goes away and prompt restored with `use exploit/`
- [x] `use exploit/windows/smb/ms08_067_netapi`
- [x] VERIFY prompt changes to show shortname (ms08_067_netapi) in red in prompt.
- [x] `exit`