added option limit-to which loads a wkt geometry to cut off unwanted areas
added a class to handle the limit-to polygon and functions to load the wkt file
added limit_to polygon to each mapping. when the osm_elem geometry is built, it will be checked if the elem is within the polygon. furthermore a boolean will indicate, if there is a voilation with the geom_type of the intersecting geom and the original one and will be processed by the dbimporter
modified insert method of TupleBased and DictBased importer. if the built_geom method returns true, then the intersecting geom has another geom_type than the original one. this is mainly by cutting lines and polygons with the limit_to polygon and resulting in multilines and multipolygons. Therefore each element of those needs to be inserted
fixed logging of unsupported limit_to geometries
handle multilinestrings in LimitPolygonGeometry
support for mixed results (e.g. point and linestring); added tests
ignore blank lines while reading wkt polygons
Merge pull request #11 from GeoDodo/master

Change links from bitbucket to github on the documentation
fixed table swapping with custom indices
improve handling of large limit-to polygons with rtree/libspatialindex
load ogr datasources as well as wkt files and return the polygons
replaces with package
added very simple srs check
Merge branch 'master' into ogr_datasource
removed try except and added boolean instead
don't create indexes before having inserted all rows
remove invalid geometries, when they are generalized
Merge pull request #14 from tbonfort/postgis-no-indexes

defer spatial index creation to the end of the import
Merge pull request #13 from quiqua/ogr_datasource

support ogr datasources for --limit-to options