add composer.lock and gitattributes

Author: angrybrad

.gitattributes

@@ -0,0 +1,19 @@
+# Do not export those files in the Composer archive (lighter dependency)
+.codecov.yml export-ignore
+.gitattributes export-ignore
+.github/ export-ignore
+.gitignore export-ignore
+.travis.yml export-ignore
+CHANGELOG.md export-ignore
+codeception.yml export-ignore
+composer.lock export-ignore
+gruntfile.js export-ignore
+gulpfile.js export-ignore
+package.json export-ignore
+package-lock.json export-ignore
+README.md export-ignore
+SECURITY.md export-ignore
+tests/ export-ignore
+
+# Auto detect text files and perform LF normalization
+* text=auto

.gitignore

@@ -4,4 +4,3 @@
 *Thumbs.db
 /node_modules
 /vendor
-composer.lock