Rename manager.py and expose its interfaces to all applications

This is a big change that break compatiblity with existing applications
*and* with existing installed versions of main.py.

When upgrading it is import to update main.py:

    ./tools/wasptool --upload wasp/main.py

1 files changed, 2 insertions, 3 deletions

diff --git a/wasp/main.py b/wasp/main.py
index cc4c8b6..4f1de10 100644
--- a/wasp/main.py
+++ b/wasp/main.py
@@ -1,3 +1,2 @@
-import manager, watch
-wasp = manager.Manager(watch)
-wasp.run()
+import wasp
+wasp.system.run()