add gitignore and editorconfig

.editorconfig

+# editorconfig.org
+
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[Makefile]
+indent_style = tab

.gitignore

+# Ignore compiled docs
+_gh_pages
+_site
+
+# Numerous always-ignore extensions
+*.diff
+*.err
+*.orig
+*.log
+*.rej
+*.swo
+*.swp
+*.zip
+*.vi
+*~
+*.sass-cache
+*.ruby-version
+
+# OS or Editor folders
+.DS_Store
+._*
+Thumbs.db
+.cache
+.project
+.settings
+.tmproj
+*.esproj
+nbproject
+*.sublime-project
+*.sublime-workspace
+
+# Komodo
+*.komodoproject
+.komodotools
+
+# Folders to ignore
+.hg
+.svn
+.CVS
+.idea
+node_modules
+dist