Merged changeset 1271 from trunk. changed hash to compute_hash to avoid symbol collusion with <functional>. Fixes ticket #60.

Added missing CoinWarmStartVector.[ch]pp and CoinWarmStartPrimalDual.[ch]pp entries to the .vcproj files (same as changeset 1262 in stable/2.5)

Added missing CoinWarmStartVector.[ch]pp and CoinWarmStartPrimalDual.[ch]pp entries to the .vcproj files.

Renamed int i to ii in line 1212 to avoid in MSVC compiler potential conflicts warnings with i defined in line 1230

Change 'bool = int ? true : false' to 'bool = int!=0', to be compatible with John's earlier warning fixes

Add defines _CRT_SECURE_NO_WARNINGS and _CRT_SECURE_NO_DEPRECATE to libCoinUtils.vcproj and unitTestCoinUtils.vcproj in stable 2.5 for Visual Studio 2008 (v9)

Add CoinOslFactorization, CoinOslFactorization2, and CoinFactorization3 to libCoinUtils.vcproj for Visual Studio 2005 (v8)