Generate cantera.pc and Cantera.mak when using MinGW

git-svn-id: https://cantera.googlecode.com/svn/cantera/trunk@2918 02a645c2-efd0-11dd-984d-ab748d24aa7e
Fix path to Cantera.mak in sample Fortran Makefiles

Use relative path if the Cantera install directory contains spaces, as the
Makefile 'include' statement doesn't seem to have a way to escape the space
otherwise.

git-svn-id: https://cantera.googlecode.com/svn/cantera/trunk@2919 02a645c2-efd0-11dd-984d-ab748d24aa7e
[Doc] Update version specified in git/svn checkout commands

git-svn-id: https://cantera.googlecode.com/svn/cantera/trunk@2920 02a645c2-efd0-11dd-984d-ab748d24aa7e