Sort, reorganize, fix .Rbuildignore and .gitignore

Author: alandipert

.Rbuildignore

@@ -1,17 +1,20 @@
-^node_modules$
-^js-tests$
-^pkgdown$
-^assets$
+^Meta$
+^doc$
 ^.*\.Rproj$
-^\.Rproj\.user$
-^\build
 ^CONDUCT\.md$
-^cran-comments\.md$
-^docs$
+^README\.Rmd$
+^\.Rproj\.user$
 ^\.travis\.yml$
-^\assets
+^assets
+^build
+^docs
+^js-tests
+^node_modules
+^pkgdown
+^srcjs
+^cran-comments\.md$
 ^karma\.conf\.js$
+^logo.svg$
 ^package\.json$
+^webpack.config.js$
 ^yarn\.lock$
-^README\.Rmd$
-logo.svg

.gitignore

@@ -1,3 +1,5 @@
+Meta
+doc
 .Rproj.user
 .Rhistory
 .RData