In logjson:

* Fix bug in Database.Transaction() of not awaiting this.mutex.acquire()
* Fix bug with modifying the cache values causing Transaction.rollback() to fail

In min_svg_cache:
* Add error handler so we can see what's wrong with a broken SVG file

In ndcode_site:
* Make sign up form styling more similar to how Bootstrap 3 used to be
* Fix minor booboo in account creation form submission
* Add accordion style dialog for account creation
* Fix transaction handling bugs

diff --git a/logjson b/logjson
index f49021c..d177ca1 160000 (submodule)
--- a/logjson
+++ b/logjson
@@ -1 +1 @@
-Subproject commit f49021c54bdf2f119bd9be07a77c034058c95c2c
+Subproject commit d177ca131eede915671c823df63d8365dbed71f4

diff --git a/min_svg_cache b/min_svg_cache
index c6d80a9..04bc5e4 160000 (submodule)
--- a/min_svg_cache
+++ b/min_svg_cache
@@ -1 +1 @@
-Subproject commit c6d80a9e5746aa3b6acd2470f5d6e1ac8e7c4e01
+Subproject commit 04bc5e4499b19e36cfd2bb9ca7bdff1a88ee82b7

diff --git a/ndcode_site b/ndcode_site
index 5d65155..11ecab5 160000 (submodule)
--- a/ndcode_site
+++ b/ndcode_site
@@ -1 +1 @@
-Subproject commit 5d65155428829802e62bb363cf6492946ff9494f
+Subproject commit 11ecab5c235de9a52c589b20959a5558a530c1cb