plugins/bashmarks: Fixed conflict with d alias

[Kreyren]

Fixes: #63

[akinomyoga]

I'm not sure if this is the proper fix. If we change the alias, it becomes inconsistent with the upstream https://github.com/huyng/bashmarks. Unless the upstream also changes the name at the same time, this change will confuse users.

By the way, I again found that the copyright notice of the upstream has been rewritten in this script. I think we need to check the copyright of all the plugins and themes that have the corresponding upstream.

[akinomyoga]

I also lowered the priority of this PR. Our template loads bashmarks by default, so the existing users with the default setup should be familiar with the bashmarks''s drather thandinlib/directories.sh. If either one would be changed, what should be changed is the one in lib/directories.sh. The users who would prefer dinlib/directories.shshould already removedbashmarks` from the plugin array or adjust the setup as they like, so they should be fine as is.

A possible problem is that the new users don't have access to d in lib/directories.sh. We may give a new name to the alias in lib/directories.sh while keeping d. We need to keep d in lib/directories.sh because otherwise, the existing users using them by removing bashmarks from the plugin array would be affected.

By the way, I again found that the copyright notice of the upstream has been rewritten in this script. I think we need to check the copyright of all the plugins and themes that have the corresponding upstream.

This was solved in 0ff46f6.