Remove Julia 1.6 from CI

.travis.yml

@@ -20,13 +20,6 @@ matrix:
         - julia -e 'using Pkg; Pkg.add("Coverage"); using Coverage; Codecov.submit(process_folder()); Coveralls.submit(process_folder())'
         - julia --project=docs/ -e 'using Pkg; Pkg.develop(PackageSpec(path=pwd())); Pkg.instantiate()'
         - julia --project=docs/ docs/make.jl
-    - julia: 1.6
-      script:
-        - if [[ -a .git/shallow ]]; then git fetch --unshallow; fi
-        - git clone https://github.com/JuliaRegistries/General.git $HOME/.julia/registries/General
-        - git clone https://github.com/kyungminlee/KyungminLeeRegistry.jl.git $HOME/.julia/registries/KyungminLeeRegistry
-        - julia --project -e 'import Pkg; Pkg.build()'
-        - JULIA_NUM_THREADS=2 julia --project --check-bounds=yes -e 'import Pkg; Pkg.test(; coverage=false)'
     - julia: nightly
       script:
         - if [[ -a .git/shallow ]]; then git fetch --unshallow; fi

appveyor.yml

@@ -1,13 +1,11 @@
 environment:
   matrix:
     - julia_version: 1.5
-    - julia_version: 1.6
     - julia_version: nightly
 platform:
   - x64
 matrix:
   allow_failures:
-  - julia_version: 1.6
   - julia_version: nightly
 branches:
   only:

docs/Project.toml

@@ -2,6 +2,6 @@
 Arpack = "7d9fca2a-8960-54d3-9f78-7d1dccf2cb97"
 Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
 ExactDiagonalization = "cf149b0a-e8f7-4f00-9ab4-03e4f5ec5cff"
+LatticeTools = "8a267902-5e0e-44c3-8ef8-9b2b5c352816"
 Plots = "91a5bcdd-55d7-5caf-9e0b-520d859cae80"
 StaticArrays = "90137ffa-7385-5640-81b9-e52037218182"
-TightBindingLattice = "f0da6d2f-861b-4198-860c-d50f6f65dfeb"