BF: Handle view being closed through close button
FIX: import object not defined in qt4

This failed silently unless ETS_DEBUG=1 .
The fix is based on a similar pattern used in pyface/api.py
ENH: Make toolbar separator honor group's visibility.

Previously, the separator would be visible even if the group is
hidden, so several adjacent hidden groups would leave behind multiple
ugly separators.
Add optional enaml panes and editor to Tasks.
Update enaml tasks for latest refactor of enaml code.
initial commit of bare-bones API level documentation
quick fix to index.rst
Merge pull request #25 from enthought/apidoc

Apidoc
BUG: GUI.invoke_later should invoke it's callable LATER, not now.
MAINT: Regularize ETS .gitignore's: include .pyd, .enamlc, .DS_Store
whether needed now or not
Merge pull request #23 from pankajp/toolbar_separator_visibility

ENH: Make toolbar separator honor group's visibility.
DEMO: tweak application example to use & toggle action groups in toolbar
Merge pull request #26 from pankajp/qt_invoke_later_fix

BUG: GUI.invoke_later should invoke it's callable LATER, not now.
ENH: Added size_state trait to Window for maximized information.

Window now has `size_state` trait which is synced to the window's
maximized state and also stored in the task's persistent layout.
Merge pull request #29 from pankajp/window_maximized_state

ENH: Added size_state trait to Window for maximized information.
BUG: Do not convert the log message to a str string but a unicode string instead.

A Windows user with a non-ASCII user name reported that a problem starting up
Mayavi. This line was raising a UnicodeDecodeError because of the explicit
str() conversion. The SplashScreen.text trait is Unicode anyways, so we really
should have been doing this already.
Merge pull request #31 from enthought/fix-unicode-splash-screen-handler

Fix SplashScreenLogHandler with unicode messages
Added comment on task example and moved it to its own folder to separate it from the enaml example.
REL: update version in preparation for release
REL: master is now version 4.2.1