Cleanup changelog
Prepare release 1.99.alpha1
Update distributions in README

* Arch (new package name), Gentoo, and openSUSE started shipping snapshots in the meantime
* CentOS, Fedora, and Mageia do not seem to ship any version at all with current releases
* The distinction between development snapshots and older versions does not make much sense anymore, since only OpenMandriva seems to still ship a real 1.23 release
Remove misleading note from README

Translations are only to be edited on Transifex
Port blueman-sendto to obexd

* WORK IN PROGRESS!
* Both the older API of separate releases of obexd and the newer one integrated with BlueZ 5 are supported (legacy support will be dropped in conjuction with BlueZ 4)
* References #16