bit refactors

[aviatesk]

• ::Int -> ::Integer for 32bits system compatibility
• don't overload Base.contlines

[codecov]

Codecov Report

Merging #334 into master will not change coverage.
The diff coverage is 80.00%.

@@           Coverage Diff           @@
##           master     #334   +/-   ##
=======================================
  Coverage   57.48%   57.48%           
=======================================
  Files          43       43           
  Lines        2531     2531           
=======================================
  Hits         1455     1455           
  Misses       1076     1076           

Flag	Coverage Δ
#unittests	57.48% <80.00%> (ø)

Impacted Files	Coverage Δ
src/datatip.jl	77.77% <0.00%> (ø)
src/utils.jl	89.24% <ø> (ø)
src/static/static.jl	91.13% <50.00%> (ø)
src/display/base.jl	43.54% <100.00%> (ø)
src/static/local.jl	100.00% <100.00%> (ø)
src/static/toplevel.jl	94.28% <100.00%> (ø)

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