Added option com.openexchange.oauth.linkedin.redirectUrl to 'linkedinoauth.properties' file to specify LinkedIn redirect URI:

# The redirect URL
#
# Please ensure the following conditions are met:
# * The redirect URL specified in the LinkedIn App needs to be the same as the one specified by this property.
# * The redirect URI uses https:// as protocol
# * The redirect URI follows the pattern: https:// + <host-name> + /ajax/defer
#
# E.g. https://myappsuite.mydomain.invalid/ajax/defer
com.openexchange.oauth.linkedin.redirectUrl=REPLAC E_THIS_WITH_YOUR_LINKEDIN_REDIRECT_URI