Correct indentation in Engine
Decrease indentation in HelperCollection constructor
Strict comparison in Tokenizer
Add few spaces around concatenations
Apply PSR rules on bin directory
Merge pull request #203 from spiasecki/feature/code_cleaning

Few code cleaning, episode 2
Merge remote-tracking branch 'upstream/dev' into feature/namespaces

Conflicts:
	bin/build_bootstrap.php
	src/Mustache/HelperCollection.php
	test/bootstrap.php