Fix .gitignore: unignore .cmake files recursively under cmake/ (#2191)

.gitignore

diff --git a/.gitignore b/.gitignore
index 8f6ce84..bc0c14a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,7 +5,7 @@
 *.exe
 *.dylib
 *.cmake
-!/cmake/*.cmake
+!/cmake/**/*.cmake
 !/test/AssemblyTests.cmake
 *~
 *.swp

AUTHORS

diff --git a/AUTHORS b/AUTHORS
index 00ac593..203961b 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -77,3 +77,4 @@
 Yixuan Qiu <yixuanq@gmail.com>
 Yusuke Suzuki <utatane.tea@gmail.com>
 Zbigniew Skowron <zbychs@gmail.com>
+XiaoWei Lu <shaway77606@gmail.com>

CONTRIBUTORS

diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index 4016558..f0a4aa8 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -104,3 +104,4 @@
 Yixuan Qiu <yixuanq@gmail.com>
 Yusuke Suzuki <utatane.tea@gmail.com>
 Zbigniew Skowron <zbychs@gmail.com>
+XiaoWei Lu <shaway77606@gmail.com>