Changes

# 1.3.1

- update deps
- update travis

# v1.3.0

- Add nothrow option to which.sync
- update tap

# v1.2.14

- appveyor: drop node 5 and 0.x
- travis-ci: add node 6, drop 0.x

# v1.2.13

- test: Pass missing option to pass on windows
- update tap
- update isexe to 2.0.0
- neveragain.tech pledge request

# v1.2.12

- Removed unused require

# v1.2.11

- Prevent changelog script from being included in package

# v1.2.10

- Use env.PATH only, not env.Path

# v1.2.9

- fix for paths starting with ../
- Remove unused `is-absolute` module

# v1.2.8

- bullet items in changelog that contain (but don't start with) #

# v1.2.7

- strip 'update changelog' changelog entries out of changelog

# v1.2.6

- make the changelog bulleted

# v1.2.5

- make a changelog, and keep it up to date
- don't include tests in package
- Properly handle relative-path executables
- appveyor
- Attach error code to Not Found error
- Make tests pass on Windows

# v1.2.4

- Fix typo

# v1.2.3

- update isexe, fix regression in pathExt handling

# v1.2.2

- update deps, use isexe module, test windows

# v1.2.1

- Sometimes windows PATH entries are quoted
- Fixed a bug in the check for group and user mode bits. This bug was introduced during refactoring for supporting strict mode.
- doc cli

# v1.2.0

- Add support for opt.all and -as cli flags
- test the bin
- update travis
- Allow checking for multiple programs in bin/which
- tap 2

# v1.1.2

- travis
- Refactored and fixed undefined error on Windows
- Support strict mode

# v1.1.1

- test +g exes against secondary groups, if available
- Use windows exe semantics on cygwin & msys
- cwd should be first in path on win32, not last
- Handle lower-case 'env.Path' on Windows
- Update docs
- use single-quotes

# v1.1.0

- Add tests, depend on is-absolute

# v1.0.9

- which.js: root is allowed to execute files owned by anyone

# v1.0.8

- don't use graceful-fs

# v1.0.7

- add license to package.json

# v1.0.6

- isc license

# 1.0.5

- Awful typo

# 1.0.4

- Test for path absoluteness properly
- win: Allow '' as a pathext if cmd has a . in it

# 1.0.3

- Remove references to execPath
- Make `which.sync()` work on Windows by honoring the PATHEXT variable.
- Make `isExe()` always return true on Windows.
- MIT

# 1.0.2

- Only files can be exes

# 1.0.1

- Respect the PATHEXT env for win32 support
- should 0755 the bin
- binary
- guts
- package
- 1st