fix tests for change to exponentiation operator
set language.majorVersionBinary to 4 as expected in test
specify difference in failure message
Util: added specialised version of Tuple.spanFrom for ceylon/ceylon-compiler#996
Compile Iterable to js
Fix Iterable.skipping
fix failure messages
put Sequential, Empty, Sequence in a separate file
Iterable is now compiled from Ceylon
Compile Sequential, Sequence, Empty to js
improve failure messages
Improve String.equals to compare against [Character]
Sequential is now compiled
Fix #192: Range: Re-enable the optimized version of Range<Integer>.by()
(where we can use  a + instead of iterating doing ++) but using a native
helper method. This is a hack until we have reified generics and can write the
optimization in pure Ceylon.
Add a test for the lengthwise range op (start:length)
Util: Add a method for creating the Range (or empty) for a start:length SpreadOp
(for ceylon/ceylon-compiler#836)
native js impl of integerRangeByIterable
Fix Iterable.indexed
Small source change to make Iterable compilable for the JVM backend, created issue #1024 for the problem with the original code