Add proper EditText support

[Actine]

EditTexts (and generally TextViews that have backgrounds with padding) tend to behave funny when their padding is set explicitly. In particular, EditTexts turn out to be measured differently when they have a single/multiple lines and explicit padding. This needs to be addressed somehow as well.

[Emasoft]

any update on this?

[Actine]

@Emasoft sadly no. Need to investigate this much deeper than expected. Will do that eventually though,

If this may help, a while ago I needed to fix alignment in multi-line EditText without background (e.g. composing email body) — I found a crude workaround for that as described here: https://code.google.com/p/android/issues/detail?id=78706#c17