Merge pull request #678 from chriscct7/master

1.4.1 Readme Start
Modified "Enter title here" in add/edit download page to "Enter download title here"
Merge pull request #679 from chriscct7/master

Upgrade notice
Remove cache_results query arg

* `no_found_rows` is always set to true in get_posts().
* Closes: #680
Merge pull request #681 from Mamaduka/master

Improve dashboard sales widget query args
edited "enter title here"
Merge pull request #686 from chriscct7/master

jQuery Validation Double Click Issue
Merge pull request #687 from chriscct7/master

jQuery Validation Changelogs
Correct a minor spelling mistake
Correct a minor spelling mistake
Remove html entities from translation strings
Add en_GB translation
Different approach to apostrophes on westi's advice
Merge pull request #692 from leewillis77/master

Various text changes
Improvements to edd_item_in_cart() for #688
Improvements to edd_item_in_cart() for #688
Require the first name on checkout

Since it has the 'required' css class on it, but EDD is not currently validating it through PHP whether it's filled out or not.
Remove misleading comment

There is no 'stored' email we're checking against. We're just checking is_email()
Merge pull request #696 from Geczy/validate-checkout

Validate checkout
Proper case comments #695