[emacs] update 5 drones

Update lib/company             to  0.9.9
Update lib/evil-nerd-commenter to  3.3.1
Update lib/flycheck            to  31-189-gb1b6c5c7
Update lib/nix-mode            to v1.3.0-4-g1512d02
Update lib/proof-site          to v4.4-213-g632a3d7f

diff --git a/lib/company b/lib/company
index d00bbba..ac82e87 160000 (submodule)
--- a/lib/company
+++ b/lib/company
@@ -1 +1 @@
-Subproject commit d00bbbac3be99d042024734fc417ecad253a52e4
+Subproject commit ac82e875e144b227e926c09c53def9b0c059115c

diff --git a/lib/evil-nerd-commenter b/lib/evil-nerd-commenter
index 3cf6b1e..cf1f579 160000 (submodule)
--- a/lib/evil-nerd-commenter
+++ b/lib/evil-nerd-commenter
@@ -1 +1 @@
-Subproject commit 3cf6b1e746f4cab9cc6aa1ba93e14d8b54b0d291
+Subproject commit cf1f57921dbf34bd6b42be0839b9645c20514401

diff --git a/lib/flycheck b/lib/flycheck
index ff306e3..b1b6c5c 160000 (submodule)
--- a/lib/flycheck
+++ b/lib/flycheck
@@ -1 +1 @@
-Subproject commit ff306e3e69b7124b61d61dbe8b653fff67655cb0
+Subproject commit b1b6c5c7c4efa4409b6e9d74ede725fe661a0836

diff --git a/lib/nix-mode b/lib/nix-mode
index 95ef285..1512d02 160000 (submodule)
--- a/lib/nix-mode
+++ b/lib/nix-mode
@@ -1 +1 @@
-Subproject commit 95ef285e7455bb88bf81d36057aa6649dc8cd995
+Subproject commit 1512d02830fe90dddd35c9b4bd83d0ee963de57b

diff --git a/lib/proof-site b/lib/proof-site
index a921439..632a3d7 160000 (submodule)
--- a/lib/proof-site
+++ b/lib/proof-site
@@ -1 +1 @@
-Subproject commit a921439a4eb5b0d96182748e779c78e2f6a41a5f
+Subproject commit 632a3d7f9ded16faaf58e1c0769bcd4f7c8193e3