add getValue for Arrays of AffExpr and QuadExpr
Merge pull request #196 from tkelman/patch-1

add getValue for Arrays of AffExpr and QuadExpr
manual SOS cannot currently support non-binary variables (#195)
Merge branch 'master' of github.com:JuliaOpt/JuMP.jl
fix #197
fix #198
annotate Ipopt.createProblem
more careful checking if solver supports problem modification
merge duplicates in probmod version of addConstraint
stopgap nonlinear printing
Merge pull request #204 from JuliaOpt/nl_print

RFC: Stopgap nonlinear printing
also try to get solutions for nonoptimal continuous solves
Merge branch 'master' of github.com:JuliaOpt/JuMP.jl
support 'continuous' SOS
Merge branch 'master' of github.com:JuliaOpt/JuMP.jl
need to zero out when resizing
prep for 0.5.4
bump version in README
add comment for #209
check for valid coefficients, fixes #210