Cosmetic changes

- Suppresses spurious output from dynare_estimation_1.m
- Removes unset output argument from dynare_estimation_init.m (which seems to be totally unused as it was not set at all and nobody reported any crashes)
- Corrects header of dynare_estimation_init.m
Merge pull request #735 from JohannesPfeifer/Cosmetic_fixes

Cosmetic changes