Increase version number
Typo in customer_tax_rule test

issue3194
review843002
(transplanted from 21635f565ee32a83d6ba14df6ca49ffc3d6325e5)

--HG--
extra : transplant_source : %21c_V%5E%E3%2A%83%D6%BA%14%DFl%A4%9F%FC%3Dc%25%E5
Fix invoice method computation for task without project

issue3175
review819002
(transplanted from 87f0ad1c2062f47b89e7baa895e1341cafe95f79)

--HG--
extra : transplant_source : %87%F0%AD%1C%20b%F4%7B%89%E7%BA%A8%95%E14%1C%AF%E9_y
Prepare release 2.8.1
Added tag 2.8.1 for changeset c49f5066aa40
Increase version number
Fix ids mixing between timesheet and project works

review915002
(transplanted from a45802fb6088de85f0a07b0dd06b10391a43ada1)

--HG--
extra : transplant_source : %A4X%02%FB%60%88%DE%85%F0%A0%7B%0D%D0k%109%1AC%AD%A1
Prepare release 2.8.2
Added tag 2.8.2 for changeset 7003cacdb6d6
Increase version number
Increase version number
null merge from 2.8
null merge from 3.0
Improve setup.py to allow dev publication

issue3436
issue1891
review2441002