Road graph plugin not work or work incorrectly.
Show message "First point not tied" if:
1. 'on the fly' CRS transfomation disabled
2. Source layer CRS not equal project CRS
Road graph plugin not work or work incorrectly.
Show message "First point not tied" if:
1. 'on the fly' CRS transfomation disabled
2. Source layer CRS not equal project CRS

This path fix it.
Merge branch 'master' of https://github.com/stopa85/Quantum-GIS
Merge remote branch 'pb/master'
Merge remote branch 'pb/master'
Merge remote branch 'pb/master'
Merge remote branch 'pb/master'
Merge remote branch 'pb/master'
Launch of integration RoadGraph api in the QGIS
add QgsGraph class
add qgsgraphbuilder interface
add qgsgraphbuilder interface
add properter classes
add qgslinevectorlayerdirector
add qgsgraphanalyzer.*
modify RoadGraphPlugin for works with QGIS'api. Fix some bug
QgsDistanceArea copy-construct is bad. Fix it.
fix 'on the fly' transform problem
New topology tolerance implementation. Some bug fix.
fix compile errors