added cnlpete/imagemetadataparser to dependencies
changed the image-metadata-parser name
Merge branch 'development' into feature/gallery-metadata

Conflicts:
	composer.json
changed the version of required imageMetadataParser Lib
removing E_STRICT warnings
added note to markdown plugin
Merge pull request #18 from cnlpete/restructure/plugins

added note to markdown plugin
Merge pull request #17 from cnlpete/refactoring/e-strict

removing E_STRICT warnings
Merge pull request #16 from cnlpete/feature/gallery-metadata

Feature/gallery metadata
readme update and fixed cnlpetes packages
Merge pull request #19 from marcoraddatz/master

bring dev upto date with master