Users who had volunteered before we added the email preference weren't able to modify subscription preferences because the server was enforcing a requirement that there be an emai preference.

This adds the email preference dropdown to the "Update email preferences" UI.  It's not mandatory if the user already has an email preference, but if they don't, submitting the form will give an error that a value needs to be provided.

use animated gif for dance party tile on course catalog and sign in page

…st.rb so aquatic projects show in the public gallery

It turns out that enabling a language here will redirect _all_ links to
CB for that language to the language-specific version of that content,
even though we only generate language-specific versions of CB content
for the subset of content we are actively translating.

This results in all CB links except for that subset being broken. We are
disabling languages for now until we can figure out a more precise way
to link to CB content.

Every key press in the parameter name text field causes a new block to be created. Now that "delete" doesn't modify the block, one less block is created.

Backport fix from test -> staging

Looks like IE11 isn't waiting properly for the page to fully load, so we explicitly wait for .blocklySvg to exist before dragging blocks.

BONUS BONUS BONUS did you know we had tests checking block dragging in portrait mode? That are identical to the tests for block dragging in landscape mode?  And that they actually _run_ in landscape mode despite saying they'll run in portrait mode?

Deleted them.

Stabilize flappydrag.feature and simpledrag.feature

…ture

Stabilize blocklayout.feature

DTT (Brad on weekend working on test stability)

When adjusting volunteer subscription preference, a red asterisk is now always shown by the 18+ option.  Also, if there isn't already an email preference, a red asterisk is shown by that choice too.

Projects: string to symbol for fetching published projects

Disable locale-specific links to CurriculumBuilder

Volunteer: fix unsubscribe for users without email preference

…orks

Dance: show "How It Works" button on shared level

Add info about new Amazon store and posters to HOC event confirmation email

move Dance scripts to beginning of HoC section

…taging

Depends on code-dot-org/blockly#157

A custom block can give any field input a type of `"ClampedNumber(min,max)"` where `min` and `max` are optional and define bounds for acceptable number input to the field.

Sets a minimum interval value on the input validation for the everySeconds and everySecondsRange custom blocks using the new ClampedNumber field type.

Every key press in the parameter name text field causes a new block to be created. Now that "delete" doesn't modify the block, one less block is created.

Update @code-dot-org/blockly

Validate minimum input values for `everySeconds` block

…anya)

…taging

@code-dot-org/blockly 3.2.1

Rename Dance_Party_11.5 to Dance_Party_11_5

Add setDanceSpeedEach to DanceParty API

@code-dot-org/dance-party 0.0.34

DTT (Staging > Test) [robo-dtt]