This commit was manufactured by cvs2svn to create branch 'RC_1_32_0'.

[SVN r25797]
Merged newly fixed copyrights


[SVN r25859]
Merged copyright declaration fixups from main trunk


[SVN r25860]
build instructions added


[SVN r25879]
Fix edge removal performance bug


[SVN r25880]
Removed tabs from files


[SVN r25946]
Graph is always const


[SVN r26187]