Bump version to 2.0.0: we're going to remove and change interfaces
Bump version to 2.0.0: we're going to remove and change interfaces

Steal libvirt’s scheme for calculating the API age and setting VERSION_INFO,
because the previous scheme does not work when the major version number
increments and minor is reset to 0 (the API level would have fallen).

albbas/enchant,AbiWord/enchant,AbiWord/enchant,AbiWord/enchant,albbas/enchant,albbas/enchant,rrthomas/enchant,rrthomas/enchant,rrthomas/enchant,AbiWord/enchant,albbas/enchant,rrthomas/enchant