Rename "Find friends" to "Find people"

[Kristina Hoeppner]

the "Find friends" menu item should be renamed to "Find people" because the search is used to find people in general and not only friends.

[Mahara Bot (dev-mahara)]

Patch for "master" branch: https://reviews.mahara.org/7539

[Mahara Bot (dev-mahara)]

Reviewed: https://reviews.mahara.org/7539
Committed: https://git.mahara.org/mahara/mahara/commit/82d4a700ae2e9564975b04b18866ab19af5654f5
Submitter: Robert Lyon (<email address hidden>)
Branch: master

commit 82d4a700ae2e9564975b04b18866ab19af5654f5
Author: Kristina D.C. Hoeppner <email address hidden>
Date: Sun Mar 26 14:16:25 2017 +1300

Bug 1667525: Rename "Find friends" to "Find people"

This makes it less ambigious who you are searching for.
With "Find friends" you can think that you can only
find existing friends. However, you can actually also
just use the search to find people without having to
add them as a friend, e.g. to find portfolios of them
more quickly.

Change-Id: I066569a2a37c0e7b4f15ad2ad56010bdf3ba2bc3