update release-tasklist
add SimulatorAccess::get_simulator()
output velocity solution in m/years if needed
add test
Merge pull request #117 from tjhei/vtu_in_years

Output velocity in m/year if needed
remove peculiar declaration
fix visualization output

compositional fields ended up being wrongly exported as 0
add test
switch test to gnuplot output and update

output changed due to velocity now being in m/year
Merge pull request #119 from tjhei/fix_data_out

Fix data out
add tests for the melting postprocessor

tjhei: switched from vtu to gnuplot output