changed dependency libs

update dependency libs (#7)

* update packages

* modify ci check php version

* support php7.0

2.0.1: fixed an issue where the locale affects the handling of floats (#6)

* fixed an issue where the locale affects the handling of floats

* tiny code style fix

drop php5.X support / for php7

fixed ci settings (#4)

* wip

* patch for php7

* added ignore

* changed travis settings

* added styleci setting

* miss configure

* drop hhvm support

* for cs

* fixed codacy cs tests

* fixer

* remove cs fixer

* update php-coveralls

* for coveralls

stable

1.0.1

init