namely: ra,ra0,dec,dec0,az,alt

Now they return const reference to dms instead of pointer. Main
reason bhid this change is to use plain dumb assignment for angles
For example following code snippets could be found in KStars sources

> a1.setH( p->ra().Hours() );

Actually it is plain assignment but in obscure form and rather ineffective.
It include two multiplications. Following code is equivalent:

> a1 = p->ra();

Much easier to understand.

Change is very extensive but fairly trivial. At the very least code
does compile and seems to work.

CCMAIL: kstars-devel@kde.org

svn path=/trunk/KDE/kdeedu/kstars/; revision=1089286