v2.0.0

Version 2.0.0 corrects enough bugs in how .qix files are generated and handled that if you happened to actually be using this in production (you should not) I'd consider it a breaking change. The upside is that it's totally compatible with mapsever now. Changes include

• correctly calculating .qix sibling node offsets, the .qix documentation had a bug implying they were calculated from the end of the mandatory part of the node, they are actually calculated from the end of the node.
• zero indexing all ids in the .qix files, shp files are technically 1 indexed but since record ids are usually inferred from position the actual id values are rarely dealt with.
• did you know there is a random byte between the header and the rest of the file in .dbf file? Yeah neither did I but it's now included in the .dbf files created when reordering your files with this tool.
• fixed a bug where we were accidentally not grabbing the last record of any range we queried
• .qix files are now loaded incrementally in user specified blocks defaulting to 4kb.
• downloading rows from the remote .shp and .dbf file is now parallelized up to a limit.