Commit 285993d4 (#499) reformatted the manual (changed directory
structure) without updating all references to other pages within the
documentation.

Additionally, obsolete files are deleted.

Reformatted Manual based on Rust book (2ed.)

The current API is subject to change, however, as the current feature set is a bit limited.
However, you can test out the existing support by installing the new git plugin, which is
recorded at the bottom of the newly-updated README.

Try it out with the following:

    echo ${env::PATH}

Remove POST_MATHEXPR flag when encountered

Forgot to add this to the last commit, so this is the cause of the error

Also enables background functions, but there's an issue with the shell hanging when a function is sent to te background

Hunter Goldstein authored 7 years ago and Michael Aaron Murphy committed 7 years ago

* Replaced non-testing 'ExpanderFunctions' with 'Expander'

* Remove ExpanderFunction in tests

* Replace macros with struct

* Add XXX for tilde, soften language

A `RefinedJob` may now be either an `External`, `Builtin`, or `Function`. The output of an
executed pipeline'd function may now be piped into the next command. There are some ways
that this could be improved though, such as enabling the last argument to be an array,
and being able to set the exit status of the function.

Implemented command line options to pushd, dirs.