Update CHANGELOG.md

Update CHANGELOG.md

fix travis

Merge pull request #34 from imlcl/master

[!] support empty numeric value

Merge pull request #26 from imlcl/master

[*] fixed UTF-8 name support

Merge pull request #21 from mennodekker/master

Fix for #20 read/write multibyte chars in free text

Merge pull request #18 from pcholewa/master

fix for trimmed values labels multibyte chars

Merge pull request #16 from mennodekker/master

Partial fix #15 - labels no longer trimmed for multibyte chars

Update composer.json

+ license