Dialer: Blacklist permission

Dialer: Allow blacklisting calls from call log detail menu
Author: Danny Baumann <dannybaumann@web.de>

Dialer: Blacklist permission
Author: Jorge Ruesga <jorge@ruesga.com>

Change-Id: Idc37ba052d2f5661672bb06761bf19c25671a0fa

Conflicts:
        res/values-cs/strings_custom.xml
        res/values/strings_custom.xml

        modified:   res/menu/call_details_options.xml
        new file:   res/values-cs/strings_custom.xml
        new file:   res/values/strings_custom.xml
        modified:   src/com/android/dialer/CallDetailActivity.java
        modified:   src/com/android/dialer/calllog/ContactInfoHelper.java