Add l10n package

This includes basic US English terms and a function to get any
translation set.

l10n/phrases.go

@@ -0,0 +1,33 @@
+package l10n
+
+// Term constants
+const (
+	DefReadMore      = "Read more..."
+	DefPublishedWith = "published with write.as"
+	DefOlder         = "Older"
+	DefNewer         = "Newer"
+)
+
+// Default phrases
+var phrases = map[string]string{
+	"Anonymous post": "Anonymous post",
+	"Blogs":          "Blogs",
+	"Newer":          "Newer",
+	"Older":          "Older",
+	"Posts":          "Posts",
+	"Publish to...":  "Publish to...",
+	"Publish":        "Publish",
+	"Read more...":   "Read more...",
+	"Toggle theme":   "Toggle theme",
+	"View posts":     "View Posts",
+	"delete":         "delete",
+	"edit":           "edit",
+	"move to...":     "move to...",
+	"pin":            "pin",
+	"published with write.as":  "published with write.as",
+	"share modal ending":       "Send it to a friend, share it across the web, or maybe tweet it. Learn more.",
+	"share modal introduction": "Each published post has a secret, unique URL you can share with anyone. This is that URL:",
+	"share modal title":        "Share this post",
+	"share":                    "share",
+	"unpin":                    "unpin",
+}