build: various updates and cleanups

Change-Id: Ic01420fc1d2f5b61b1b81c6e1d99c1921395162a
diff --git a/.mailmap b/.mailmap
new file mode 100644
index 0000000..ae2e828
--- /dev/null
+++ b/.mailmap
@@ -0,0 +1,4 @@
+<aa@cs.fiu.edu> <alexander.afanasyev@ucla.edu>
+<davidepesa@gmail.com> <davide.pesavento@lip6.fr>
+Weiqi Shi <swqjustin@g.ucla.edu>
+Md Ashiqur Rahman <marahman@email.arizona.edu>