Upgrade bazlets to latest stable-2.14

Includes the following fixes:

- Bazel: Add fixes for --incompatible_load_python_rules_from_bzl
- Bazel: Export rules_python in plugin API
- Support bazelisk or bazel in tools/eclipse/project.py
- Rework imports in project.py
- Update project.py to use argparse
- Bazel: Add fixes for --incompatible_load_java_rules_from_bzl

Also adds a .bazelversion file specifying version 0.29.0 which is
used by bazelisk (if installed).

Change-Id: If06e157079ef79120ef02b1023987d1f98451cf1

.bazelversion

diff --git a/.bazelversion b/.bazelversion
new file mode 100644
index 0000000..09d1d01
--- /dev/null
+++ b/.bazelversion
@@ -0,0 +1,2 @@
+0.29.0
+

WORKSPACE

diff --git a/WORKSPACE b/WORKSPACE
index 3ed51b1..68f9327 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,7 +3,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "b750c0adec6deebb1063219787a97fab1d32724b",
+    commit = "e65c0e748c263b8e8c752612730285658a344ec2",
     #local_path = "/home/<user>/projects/bazlets",
 )