Renaming window_1Dmean->wmean_1D
Improving assert message.
Possible assert checks, but still commented.
Improving get_halfpower_period.
PEP8
Bugfix @ apply_window_mean_2D_latlon
Switcher to profile maud.pyx.
Just adding an idea.
window_mean_2D_latlon -> wmean_2D_latlon
Updating func names @ __init__.py