2.5.0

• Responsify all post images by adding srcset and sizes through a display filter.
• Improve method used to build paths in tevkori_get_srcset_array()
• Adds linthub config files
• Returns single source arrays in tevkori_get_srcset_array()
• Add tests for PHP7 to our Travis matrix
• Add test coverage for tevkori_filter_attachment_image_attributes()
• Removes deprecated function, tevkori_get_src_sizes()