Cleaner expression and array litteral indenting

Fixes #259
Add tests for keep_array_indentation = false
Do not add extra space during keep_array_indentation

Also, handle a few more edge cases while using keep array indentation

Fixes #263
Test for another brace indenting  case

Closes #262
Streamline block comment code path

Related to #258
Fix brace format flip-flop

Fixes #258
One more test for brace formatting

Closes #268