Some tabs to spaces cleanups in templateparser.cpp.
"How does it works?" help link in all templates configuration dialogs.
Replace empty templates with "%BLANK" on save to allow peoples have
empty templates if they wish.
svn path=/branches/KDE/3.5/kdepim/; revision=614039
Improved templates support from Dmitry:
1. Coding style fixes.
2. Little refactoring.
3. Custom reply/forward templates added (David Faure ask for them on list)
4. Various bug fixes, including major one -- wrong charset on %TEXT command
svn path=/branches/KDE/3.5/kdepim/; revision=614027