Made clearer that variant's tag is irrelevant.

svn path=/trunk/boost/geometry/; revision=82377
Made num_points variant-aware.

svn path=/trunk/boost/geometry/; revision=82378
Integrated not_implemented into clear.

svn path=/trunk/boost/geometry/; revision=82390
Made clear() variant-aware.

svn path=/trunk/boost/geometry/; revision=82395
Gave variant dispatcher a more algorithm-specific name.

svn path=/trunk/boost/geometry/; revision=82409
Made the append algorithm variant-aware.

svn path=/trunk/boost/geometry/; revision=82412
Reimplemented variants handling in append to avoid function overloading.

svn path=/trunk/boost/geometry/; revision=82449
Reimplemented variants handling in clear() to avoid function overloading.

svn path=/trunk/boost/geometry/; revision=82450
Adding back mistakenly removed polygon specialization

svn path=/trunk/boost/geometry/; revision=82452
Made the equals algorithm variant-aware.

svn path=/trunk/boost/geometry/; revision=82463
Used 'devarianted_' term in append algorithm, like for equals.

svn path=/trunk/boost/geometry/; revision=82464
Better aligned the recent new code.

svn path=/trunk/boost/geometry/; revision=82465
Reimplemented variant handling in area algorithm.

svn path=/trunk/boost/geometry/; revision=82466
Removed a useless template parameter + used devariant_area in the no-strategy overload.

svn path=/trunk/boost/geometry/; revision=82467
Small fix - missing header.

svn path=/trunk/boost/geometry/; revision=82468
Reimplemented variants handling in clear algorithm.

svn path=/trunk/boost/geometry/; revision=82469
Reimplemented variants handling in num_points algorithm.

svn path=/trunk/boost/geometry/; revision=82470
Made the convert algorithm variant-aware.

svn path=/trunk/boost/geometry/; revision=82472
Made dispatch::wkt able to retrieve the tag by itself + used not_implemented.

svn path=/trunk/boost/geometry/; revision=82473
Adapted multi/io/wkt to latest change.

svn path=/trunk/boost/geometry/; revision=82474