Initial commit: nimforum with BaraDB backend

- Replaced SQLite with BaraDB via TCP wire protocol
- Added baradb_client.nim and baradb_sqlite.nim adapter
- Renamed SQL keywords: status->usrStatus, key->sessionKey, like->postLike
- Added NOW() support for datetime defaults
- Switched Jester to asynchttpserver (-d:useStdLib) to avoid thread/GC issues
- Frontend built and favicon added

tests/browsertests/issue181.nim

@@ -0,0 +1,36 @@
+import unittest, common
+
+import webdriver
+
+proc test*(session: Session, baseUrl: string) =
+  session.navigate(baseUrl)
+
+  test "can see banned posts":
+    with session:
+      register("issue181", "issue181")
+      logout()
+
+      # Change rank to `user` so they can post.
+      login("admin", "admin")
+      setUserRank(baseUrl, "issue181", "user")
+      logout()
+
+      login("issue181", "issue181")
+      navigate(baseUrl)
+
+      const title = "Testing issue 181."
+      createThread(title, "Test for issue #181")
+
+      logout()
+
+      login("admin", "admin")
+
+      # Ban our user.
+      setUserRank(baseUrl, "issue181", "banned")
+
+      # Make sure the banned user's thread is still visible.
+      navigate(baseUrl)
+      ensureExists("tr.banned")
+      checkText("tr.banned .thread-title > a", title)
+      logout()
+      checkText("tr.banned .thread-title > a", title)