release 2.0.0

diff --git a/travis/pecl b/travis/pecl
index 7d1a61ddce20446912ed1d5c988f801903972a34..29d127c657e4aa27d35376c931b420185d03010d 160000 (submodule)
--- a/travis/pecl
+++ b/travis/pecl
@@ -1 +1 @@
-Subproject commit 7d1a61ddce20446912ed1d5c988f801903972a34
+Subproject commit 29d127c657e4aa27d35376c931b420185d03010d