[Pydev-code] Tabs / indentation

[Fabio Z. <fa...@in...>]

Hi All,

I've just changed the indentation to get always the python indentation
(being on comments or not).

I've also added an action for backspace. It has not been enough tested or
even consider all approaches, but it should be better than the default
approach (that is, if you use spaces and not tabs) - I haven't even tested
it with tabs.

Fabio