replace repl_show with writemime and display
rename error_show to show_error
remove showall(), start to remove summary()
add MIME_str macro
Merge branch 'master' of github.com:JuliaLang/julia into jb/repl_show_to_display

Conflicts:
	base/deprecated.jl
Merge branch 'master' of github.com:JuliaLang/julia into jb/repl_show_to_display
update with stevengj's comments
Merge branch 'master' of github.com:JuliaLang/julia into jb/repl_show_to_display
finish converting to MIME"" syntax and update doc
de-underscore show_error
eliminate showall(), it had repeated code, and we need a better approach
to truncated output.
Pkg.scaffold: better info messages.
More I/O and filesystem documentation
Merge branch 'master' of github.com:JuliaLang/julia
rename: get_precision => precision.
doc: regenerate helpdb.jl
oops: rename get_precision => precision in test too.
move j0/j1/y0/y1[f] functions to the right library
fix #3081 for i128 return types
fix #4119
Merge branch 'master' of github.com:JuliaLang/julia
fix #3695
fix win-extras target on windows
fix #3998