Update Travis-CI configuration

Update Travis-CI configuration

Merge pull request #100 from wick-ed/1.1

Minor bugfix with the handling of tags on travis

Merge pull request #97 from wagnert/1.1

Switch to PHP 5.6.40

Merge pull request #96 from wagnert/1.1

Update Travis-CI configuration

Merge pull request #95 from wagnert/1.1

Update to PHP 5.6.35

Merge pull request #94 from wagnert/1.1

Update CHANGELOG.md

Merge pull request #92 from wagnert/1.1

Switch to PHP version 5.6.30

Merge pull request #91 from wagnert/1.1

Switch to PHP 5.6.25

Merge pull request #90 from wagnert/1.1

Switch to PHP 5.6.23 + Set always_populate_raw_post_data to -1 in all PHP ini files