specify charset on api response
Amend gulp express task to use next available port

If a given port is in use, increment.
Also, make Protractor aware of the baseUrl.

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Merge pull request #2228 from opf/fix/gulp-increment-express-port

Amend gulp express task to use next available port
Merge pull request #2225 from opf/hotfix/charset_on_api

specify charset on api response
Merge branch 'release/4.0' into dev
Removed useless :lang option.

PR: #2104
https://github.com/opf/openproject/commit/48f721200b6876d20d406589e9f3ed9a2887a61e

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extra : convert_revision : svn%3Ae93f8b46-1217-0410-a6f0-8f06a7374b81/trunk%407901
Removed useless :lang option.

PR: #2104
https://github.com/opf/openproject/commit/48f721200b6876d20d406589e9f3ed9a2887a61e

https://github.com/rails/rails/blame/71273430ce3f97785f688364f5495cc105cd1860/actionpack/lib/action_view/helpers/form_helper.rb#L1202

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extra : convert_revision : svn%3Ae93f8b46-1217-0410-a6f0-8f06a7374b81/trunk%407902