[CB-3022] add default textbox value for notification.prompt

- document adding default textbox value parameter for notification.prompt
[CB-2598] remove iOS doc reference to navigator.fileMgr API

-remove iOS doc reference to non-existing navigator.fileMgr API
[CB-3043] Fix broken images on all Windows guides.
[CB-3043] Fix broken links in all Windows guides.
Adding BlackBerry 10 Command-line Usage docs
Code review changes

Conflicts:
	docs/en/edge/guide/getting-started/blackberry10/index.md
	docs/en/edge/guide/plugin-development/blackberry10/index.md
Fixed hyperlinks on getting started and plugin dev guides for bb10

Conflicts:
	docs/en/edge/guide/getting-started/blackberry10/index.md
	docs/en/edge/guide/plugin-development/blackberry10/index.md
	docs/en/edge/guide/plugin-development/index.md
pushed from wrong branch, undoing damage

[CB-3159] Initial draft of getting started for BlackBerry 10

[BlackBerry10][CB-3159] Adding BlackBerry10 getting started plugin development docs

Fixed hyperlinks on getting started and plugin dev guides for bb10

Code review changes
[CB-3398] Doc iOS camera photo album vs returned image differences
[CB-2535] Document media.setVolume

- Document media.setVolume in API docs.  This is existing functionality.
[CB-3408] Add docs for new InAppBrowser options (iOS/Android)
[BlackBerry10] Add instructions on building native plugin using the native IDE
[BlackBerry10] Update plugin add/remove in getting started guide
Add a .reviewboardrc file to make using post-review easier.
Set VERSION to 2.8.0rc1
[CB-3527] Update Upgrading Guide for 2.7.0 -> 2.8.0 for iOS
[CB-2332] Document FileTransferError.body
(cherry picked from commit 29585ce7f395bf0e0f8f9ebd6a4aa7e87ba678a8)
[CB-3555] [BlackBerry10] Update getting started guide

- target type now specified using -t
- run now calls build rather than the reverse
Added 2.8.0 upgrade step
updated version