Make code 0.6 compatible (#128)

* running v0.6 conversion code proposed by @ovainola in #108.
* change travis so that build is done using 0.6
* documentation is build from 0.6
* fix most of deprecation warnings
* fix test to pass 0.6

test/test_fields.jl

@@ -19,7 +19,7 @@ using JuliaFEM.Testing
     @test isapprox(f, 1.0)
     @test 2*f == 2.0 # multiply by constant
     @test f(1.0) == 1.0 # time interpolation
-    @test isapprox([2.0]''*f, 2.0) # wanted behavior?
+    @test isapprox(reshape([2.0],1,1)*f, 2.0) # wanted behavior?
 end
 
 @testset "discrete, variable, time invariant field" begin

test/test_solvers.jl

@@ -59,7 +59,7 @@ end
     push!(s, p)
     get_field_assembly(s)
     @test s.ndofs == 0
-    add!(p.assembly.K, [4], [4], [4.0]'')
+    add!(p.assembly.K, [4], [4], reshape([4.0],1,1))
     get_field_assembly(s)
     @test s.ndofs == 4
 end
@@ -70,8 +70,8 @@ end
     p1 = Problem(Dirichlet, "bc1", 2, "displacement")
     p2 = Problem(Dirichlet, "bc2", 2, "displacement")
     # third dofs constrained 
-    add!(p1.assembly.C2, [3], [3], [1.0]'')
-    add!(p2.assembly.C2, [3], [4], [1.0]'')
+    add!(p1.assembly.C2, [3], [3], reshape([1.0],1,1))
+    add!(p2.assembly.C2, [3], [4], reshape([1.0],1,1))
     s.ndofs = 4
     push!(s, p1, p2)
     @test_throws ErrorException get_boundary_assembly(s)