Made some spelling/grammar/capitalization corrections
Remove ignored built /web/concrete/js/select2.js

/web/concrete/js/select2.js is git-ignored (since it's built by npm),
but it's in git.
Remove it from git
Close #789
Close #606
Merge branch 'master' of github.com:concrete5/concrete5-5.7.0
Close #829
Merge pull request #835 from jprostko/master

Made some spelling/grammar/capitalization corrections
Merge pull request #836 from mlocati/delete-built-select2.js-from-git

Remove ignored built /web/concrete/js/select2.js
Close #833
Fix #826; Fix #825;
Close #817
Fix #87
Fix #401
Fix #499
Close #625
Fix the order of blocks with no add routine.

- Blocks added to the first drag_area were being appended rather than prepended.
- We were using `$.get` rather than `$.getJSON` for some reason
Close #554
Merge branch 'master' of github.com:concrete5/concrete5-5.7.0
page list tweak
Reformat layouts js