Replace Array{T,1} with Vector{1}

[rikhuijzer]

Hi! I'm working on a linter, and saw that this repository has 12 occurrences of using

Array{T,1}

where this could be shortened to

Vector{T}

I know that it doesn't shorten the code too much, but I think that overall it does improve the readability, and that is why I open this PR 😄

Feel free to close this PR immediately if you're not interested in this small refactoring.

By the way, the tests fail locally on

RESTful PDB Interface: Test Failed at /home/rik/git/MIT_orig/test/PDB/PDB.jl:276
  Expression: (getpdbdescription("104D"))["resolution"]

with and without applying this PR

[rikhuijzer]

Sorry! This is not a good refactor, I think. It is confusing since the stack trace shows Array{T,1} even after using Vector{T}. I've removed this refactor completely from the linter.

[diegozea]

I think the error is related to #59 Thanks for pointing out the error and the interest in the package.