+ T_POW implementation (from php 5.6-beta2)
* fixed int if possible for pow result
* fixed pow() behaviour
* fixed long overflow for pow operation
+ tests
[php 5.5] Implement list() in foreach
Merge pull request #151 from jphp-compiler/feature/php-5-5/foreach-list

[php 5.5] Implement list() in foreach
Update README.md
Fix #154: bug in tokenizer - block comments
Merge branch 'master' of https://github.com/jphp-compiler/jphp
Fix #152: array[var] in magic string expression
Merge branch 'pow-impl' of https://github.com/POPSuL/jphp into POPSuL-pow-impl

Conflicts:
	jphp-core/src/org/develnext/jphp/core/tokenizer/TokenType.java
Merge branch 'POPSuL-pow-impl'
Update README.md
Update README.md
Fix #155: bug in tokenizer for comments
Merge fixes