New submodules, more robust REPL-stealing, normalized paths

Merge pull request #55 from timholy/teh/fix_stealing

Fix REPL stealing

Faster package loading

Merge pull request #50 from timholy/teh/invokelatest

Fix `invokelatest` bottleneck by using scheduling

revise(module) and fixes on 0.7

Merge pull request #48 from timholy/teh/fix0.7

Fix Revise on 0.7

Preserve order of included files

Merge pull request #45 from timholy/teh/preserve_order

module2files and a bunch of comments

Better support for __FILE__ and __DIR__ macros

Merge pull request #37 from timholy/teh/FILE

Run macroreplace! on all expressions to replace __FILE__, fixes #36.

Juno

Merge pull request #35 from timholy/teh/juno

Support automatic revision in Juno. Fixes #28

Deterministic evaluation order

Use OrderedSet (#33)

This ensures that code is evaluated in the order in which it's defined in the file.

Better line numbers

Merge pull request #29 from timholy/teh/linenumbers

Keep track of line number across multiple parse calls. Fixes #27

OSX fixes

Merge pull request #22 from timholy/teh/watch_dirs

Watch directories rather than files

Package exclusion

Merge pull request #16 from timholy/teh/dont_watch

Add exclusion/silencing mechanisms and exclude GSL