Explicitly set end of line to lf as opposed to crlf

Author: Warren Buckley

.gitattributes

@@ -3,9 +3,9 @@
 
 # Explicitly declare text files you want to always be normalized and converted
 # to native line endings on checkout.
-*.ts text
-*.js text
-*.json text
+*.ts text eol=lf
+*.js text eol=lf
+*.json text eol=lf
 
 # Declare files that will always have CRLF line endings on checkout.
 # *.sln text eol=crlf