Corrected punctuation, full stops and deleted whitespaces
Merge remote-tracking branch 'upstream/master' into patch-3
proposed changes for Terms and Definitions
Fix typo
Interface declaration missing on Traversable def
Merge remote-tracking branch 'upstream/master' into patch-3

Conflicts:
	spec/php-spec-draft.md
Corrected punctuation, full stops and deleted whitespaces
Add direct links to submit and browse tickets
Fix typo
Merge branch 'pull-request/29'
Merge branch 'pull-request/30'
Merge branch 'pull-request/24'
added behavior to the list to avoid confusion about what constitutes output
update some execution details for PHP engine
Fixed broken link
Wrong variable name in the description
Small grammar fix
Fixing byRef assignment example consistancy

All other examples of byRef assignments use `$b =& $c`, while this one here used `$b = &$c`. Using the same syntax everywhere is just clearer.
Fixing simple typo
Fixing simple typo