Fix missing removeAll in Set
Clarifications
Use self collectionSize for SequenceableCollection borders
Merge pull request #783 from herby/do-not-test-implementation

Do not test implementation
Use `instanceof RangeError` in boot.js
fixes boot.js `wrappedError()`
Small reformattings in Array and String
Merge branch 'bug-755' of https://github.com/tomrake/amber

Conflicts:
	cli/js/AmberCli.js
	cli/st/AmberCli.st
additional comma and addAll: test for overlapping Sets
ifAbsentPut: tests

Array does not have at:ifAbsentPut:, ???
Push at:ifAbsentPut: up
Tests for comma in HashedCollection, allowing comma

Pharo has comma for Dictionaries.
Update API-CHANGES.txt
Merge branch 'upstream' into at-ifabsentput-tests
Update API-CHANGES.txt
Update API-CHANGES.txt
Merge branch 'upstream' into allow-comma-for-hashedcollection
validation of --base-path only directories.
FileServer:checks --base-path but only warns on problem values
FileServer --base-path validation checks are async and console warn: