Fixed symfony:doctrine:schema:drop - added --force

Task symfony:doctrine:schema:drop never actually droped schema because of missing --force parameter.
Compatibility to Capistrano 2.14.1
Added confirmation to doctrine drops tasks

Fixed symfony:doctrine:database:drop (missed --force argument too).
Added confirmation for symfony:doctrine:database:drop and 
symfony:doctrine:schema:drop.
Updated specs for doctrine drop tasks
Merge pull request #320 from KingCrunch/capistrano2.14-compat

Compatibility to Capistrano 2.14.1
Merge pull request #319 from solzenic/patch-1

Fixed symfony:doctrine:schema:drop - added --force
Implemented :doctrine_em configuration option

* Added :doctrine_em symbol with default value of `false`
* Added `before` hooks for relevant symfony:doctrine:* commands to assemble --em flag
* Added flag variable to commands being run
* Added tests for --em flag in spec file

Fixes everzet/capifony#321
Merge pull request #322 from EvanK/symfony2-doctrine-em-flags

Added :doctrine_em configuration option for custom Doctrine entity manager
Update CHANGELOG
Prepare 2.1.7 release
Bump version to 2.2.8.dev
Update capifony.gemspec

See https://github.com/everzet/capifony/issues/332
Merge pull request #334 from garak/patch-1

Update capifony.gemspec
Add pretty printing to symfony:assets:update_version
Update assets_version before installing assets
Merge pull request #338 from richardfullmer/pretty-print-asset-version-update

Add pretty printing to symfony:assets:update_version
Merge pull request #339 from richardfullmer/ordering

Update assets_version before installing assets
replace run block for data capturing with capture method + make try_sudo work

- replaced the run blocks for data capturing with the capture method
- used sh -c around the try_sudo commands to make the the whole command
run by the sudo user and not only the part before the |
- used force delete to skip the 'remove write-protected regular file?'
question
Merge pull request #343 from daanporon/issue/337

database:dump:remote doesn't work
BugFix running cap deploy with user_sudo = true