Merge pull request #181 from iansealy/master

Minor typos in Lost in Space.
'warning message' added in an attempt to minimise confusion as projects move around
Christmas Capers: 'play drum beat' code fixed
Edits Forever If (2)

Adds "then" to the If block
Merge pull request #183 from stevieflow/patch-3

Edits Forever If (2)
Christmas Capers: replaced 'y position of present' with simpler 'y position' block in downloadable Scratch projects
Merge branch 'master' of https://github.com/CodeClub/scratch-curriculum
Paint Box project simplified and moved to Term 1
Merge pull request #184 from iansealy/master

Minor typos in Rock Band.
Level 1/2/3 changed to Term 1/2
Lost in Space: improving 'saving work' instructions
Adding coloured blocks to project notes pages
s/switch to costume/switch costume to
Boat Race project added
Boat Race: Additional challenge added
Paint Box: .png images compressed
ChatBot: given choice between 4 characters that have multiple costumes
Balloons: added 'show' block to screenshot.
Merge remote-tracking branch 'upstream/master'

Conflicts:
	en-GB/Term 2/Paint Box/Paint Box.md