Update to 1.4.99.14 aka 1.5.0 alpha1
Changes:

• More fixes on pkg lock/unlock on 32bits
• Initial support for provides/requires
• Print which package is the reason for direct depend change
• Cleanup regression tests
• Allow pkg create -M ./plop.ucl -p ./plop.plist
• Deprecate --relocate
• add pkg -r <rootdir> option to allow easy cross installation
• export PKG_ROOTDIR in script to ease cross installation friendly scripts