Grunt: more inline documentation for `grunt jshint` task.

See #5160, props netweb

git-svn-id: https://buddypress.svn.wordpress.org/trunk@8389 cdf35c40-ae34-48e0-9cc9-0c9da1808c22
Grunt: rename task `grunt build-dev` to `grunt build`.

This is the default task that runs when you run just `grunt` so it doesn't break any existing workflows for us,
but makes the development Grunt task name consistent with bbPress and WordPress.

Props netweb, see #5160

git-svn-id: https://buddypress.svn.wordpress.org/trunk@8390 cdf35c40-ae34-48e0-9cc9-0c9da1808c22
Bump BP version number in `package.json`.

The format for this field needs to be in the "semver" standard, which might cause issues for
future (>=3.0) or legacy (<2.0) versions of BuddyPress, if BuddyPress was ever included in any
PHP package managers. In semver, changing the first digit represents a break in compatiblilty
with previous versions. At least for now, everything remains fine. :)

Props netweb for catching this typo and for the patch, see #5160.

git-svn-id: https://buddypress.svn.wordpress.org/trunk@8391 cdf35c40-ae34-48e0-9cc9-0c9da1808c22
Update `.travis.yml` to play nicer with PHP5.6. We can revisit this when 5.6 is considered stable. Props netweb. Fixes #5160.

git-svn-id: https://buddypress.svn.wordpress.org/trunk@8392 cdf35c40-ae34-48e0-9cc9-0c9da1808c22
No `SAUCE` here. Fix mispeeling in `bp-loader.php` constant, and update it to more closely match bbPress's.

git-svn-id: https://buddypress.svn.wordpress.org/trunk@8393 cdf35c40-ae34-48e0-9cc9-0c9da1808c22
Update via r8393