Add more information when IRFs are not displayed due to explosive simulations
bug fix for date_number: don't permit weeks >= 53
Merge pull request #489 from JohannesPfeifer/explosive_irf_warning

Add more information when IRFs are not displayed due to explosive simula...
Added simpsa routines (new optimization algorithm)
mode_compute = 10 calls simpsa algorithm.
Provide more sensible lower and upper bounds for simpsa algorithm.
Removed the seed set on clock. Changed default values for the options.
Fixed bug caused by the size of the vector of parameters (transposition needed).
Linked simpsa's tolerance options to dynare's defaults.
support negative dates
simplify regex
support unbounded years
remove unnecessary parenthesis
preprocessor: replace dates with dynDates
Added simpsa optimization algorithm in the manual.
Merge branch 'master' into add-simpsa-optimization-routine
Added missing semicolon.
Fix license info for simpsa
remove unnecessary test
catch leading space before comment