Cosmetic fix to displaying steady state error

Gets rid of white space
Provide additional debugging info before lnsrch1 crashes with error
dynSeries: add scalar subtraction
fix typo
dynSeries: add scalar addition
Add debugging option to simul that allows for checking problems with exogenous variables
reporting: @graph: add new option graphSize
reporting: @graph: new option xTickLabels
dynSeries: fix scalar subtraction for octave
reporting: @series: add zerotol option
ms-sbvar: submodule update
Merge pull request #450 from JohannesPfeifer/display_fix

Cosmetic fix to displaying steady state error
Merge pull request #449 from JohannesPfeifer/linesearch_info

Provide additional debugging info before lnsrch1 crashes with error
Merge pull request #451 from JohannesPfeifer/simul_debug_info

Add debugging option to simul that allows for checking problems with exo...
Merge branch 'master' of https://github.com/DynareTeam/dynare
Add debugging info to steady state for linear models

Resembles the messages already provided for non-linear models
Merge pull request #455 from JohannesPfeifer/linear_steady_debug_info

Add debugging info to steady state for linear models
Merge branch 'master' of https://github.com/DynareTeam/dynare