Added Propeller Spin language to languages.yml
Add more extensions based on XML
Added sample Spin code objects to samples/Propeller Spin/
Converted spin samples from UTF16LE to UTF8 character encoding.
Changed Propeller Spin primary_extension key to extensions and set value as array
Add samples as requested.
add release instructions to README
improve release instructions
one more tweak
Merge pull request #1172 from github/include-release-instructions-in-readme

add release instructions to README
Merge pull request #988 from lamestation/master

Added Propeller Spin language to languages.yml
Samples update
Add targets sample.
Merge pull request #1155 from NN---/patch-1

Add more extensions based on XML
Updating samples