Switch to git checkouts of WP for Travis CI tests

This change results in faster build time

See #5708

Props netweb

git-svn-id: https://buddypress.svn.wordpress.org/trunk@8510 cdf35c40-ae34-48e0-9cc9-0c9da1808c22
Remove "prev" and "next" links when on a BuddyPress page.

WordPress injects these links in the <head> of each WordPress post.
However, BuddyPress doesn't adhere to these links.  These links also take
two DB queries on each page load and are uncached.

Therefore, this commit removes these links.

Fixes #4981.

git-svn-id: https://buddypress.svn.wordpress.org/trunk@8511 cdf35c40-ae34-48e0-9cc9-0c9da1808c22
Fix Travis CI tests for PHP 5.2

PHP 5.2 tests have been broken on Travis CI since r8017, the switch to using
WP's "develop" suite instead of the old wp-tests repo. This changeset fixes
these builds by making the following changes:

- Better consistency with the use of environment variables (swap out the old
  WP_CORE_DIR for WP_DEVELOP_DIR, which is what BP itself expects when setting
  up PHPUnit)
- Use of `export` when creating the environment variable, to ensure that PHP
  has access to it across shell sessions

Hat tip to netweb for an initial patch addressing this issue

See #5708

git-svn-id: https://buddypress.svn.wordpress.org/trunk@8512 cdf35c40-ae34-48e0-9cc9-0c9da1808c22
In Travis CI tests, set fast_finish flag to true

This change allows a build to be marked as failed as soon as a single job in
the build matrix has failed, providing faster feedback for devs.

See #5708

Props netweb

git-svn-id: https://buddypress.svn.wordpress.org/trunk@8513 cdf35c40-ae34-48e0-9cc9-0c9da1808c22
Merge branch 'master' of github.com:buddypress/BuddyPress

Conflicts:
	.travis.yml
test 3.7 changes