Merge pull request #194 from iansealy/master

Minor typos in Paint Box.
Balloons: Replaced 'hide' with 'delete this clone'
Volunteer notes now mention the 'resources' folder.
Snowball Fight: Typo in Scratch code fixed.
Updates If to If... then

In code block for Falling Presents
Switches order of instructions

The code block makes sense to come after step 2 : "Add the following script..."
Merge pull request #196 from stevieflow/patch-4

Updates If to If... then
Merge pull request #197 from stevieflow/patch-5

Switches order of instructions
Scratch 2 switched order of 'switch to costume'
Merge branch 'master' of https://github.com/CodeClub/scratch-curriculum into more_scratch_2_migration
All the rest of the if/thens. A child was confused by this today, so it is worth changing them
There is no 'forever if' block in Scratch 2.0
A few missing brackets which cause rendering not to work
Merge pull request #198 from enewton/more_scratch_2_migration

More scratch 2 migration
Minor typo in Boat Race.