add postgis location for arch linux
move pl code into planet/plugins; add makefile
remove version check in pl plugin
Use PASV for ftp upload
add script to generate web client error_types and schemata tables
check for almost-junctions that end in barriers
check for faintly-connected mini-roundabouts
check for faintly connected single-node roundabouts too
new warning: look for objects tagged with addr:full but not addr:housnumber/addr:housename
ignore dead-ended oneways where the first/last node is tagged with noexit=yes

sometimes the dead-end is legitimate (e.g. the road hasn't been
completely built yet)