Basic Auth creates bad headers in crystal 0.29.0

[kalinon]

The following error is thrown when trying to use the Halite.basic_auth function.

       Header content contains invalid character '\n' (ArgumentError)
         from /usr/local/Cellar/crystal/0.29.0/src/http/headers.cr:303:7 in 'check_invalid_header_content'
         from /usr/local/Cellar/crystal/0.29.0/src/http/headers.cr:108:5 in 'add'
         from lib/halite/src/halite/ext/http_headers_encode.cr:27:11 in 'encode'
         from lib/halite/src/halite/options.cr:387:9 in 'parse_headers'
         from lib/halite/src/halite/options.cr:130:23 in 'with_headers'
         from lib/halite/src/halite/chainable.cr:163:7 in 'headers'
         from lib/halite/src/halite/chainable.cr:130:7 in 'auth'
         from lib/halite/src/halite/chainable.cr:120:7 in 'basic_auth'

This is due to not using Base64.strict_encode which does not place a newline at the end of the output.

[icyleaf]

Updated in PR, File an issue with any question.

[kalinon]

Merged and resolved