Add labels and gotos. (Fixes #101)
Try using a table in goto-form.
Lookup labels using a Dict in typeinf.
Use an array instead of a dict to index labels.
Macro hygiene and error messages for gotos.
Remove unecessary interpreter changes.
Make goto play nice with try/catch blocks.
Basic goto tests.
Forbid gotos from finally blocks.
Forbid goto skipping finally blocks.
Remove unused symbolicgoto_sym and symboliclabel_sym globals
improve manual description of array concatenation syntax. closes #7292
define .+ and .- for array and scalar arguments instead of +,-. fixes #7294
Fix #7295, #4513

Replaces tty_rows()/tty_cols() with tty_size(), which calls
uv_tty_get_winsize() to get the terminal size
Make size(UnixTerminal) return a tuple
Remove try from tty_size()

I realized that the REPL uses size without try, so if it might fail on
a normal system would probably already know about it.
Move FakeTerminal to test/repl.jl
Update arrays.rst

Fix garbled tables
Add deprecation warnings for tty_rows() and tty_cols()

These were never exported, but there are a decent number of packages
that use them.
Merge pull request #7305 from rsrock/patch-2

Update arrays.rst