Split the `destroy` method of the file_type::ruby provider into two
private methods:  `handle_destroy_line` which is the same as the previous
`destroy` method, and `handle_destroy_with_match` which will destroy any
line which matches the `match` parameter, raising an error if multiple
lines match and the `multiple` parameter is not `true`.  This new
behavior is only used if the new boolean parameter `match_for_absence`
is `true` (it defaults to `false`).

Mergeback 4.8.x

[MODULES-2370] allow `match` parameter to influence `ensure => absent` behavior.

(MODULES-2410) Add new functions dos2unix and unix2dos

Add spec tests to test the new functionality:
 *Case for 3 arrays.
 *Case for 4 arrays.
Modify README to note new functionality.

This is for issue MODULE-2456, follow the precedent of MODULE-444.

This change allows union to be much more useful, unioning many arrays
in one line rather than in n lines. Additionally, as this is only added
functionality, and does not affect the 2 array case that all modules
currently using array are using, it should not affect any existing
modules utilizing union.

This is now useful, for example, for merging many arrays of resources
(eg: packages.) to generate just one list with no duplicates, to avoid
duplicate resource declarations.

(MODULES-2456) Modify union to accept more than two arrays

(MAINT) improve base64 unit tests

Remove trailing whitespace

Two functions had not been given any *Type* information. This commit fixes that.

Consistent Readme

Squashed, improved docs, updated error handling and unit tests by David S.

Adds a convert_base function, which can convert numbers between bases

Squashed, and amended test for comment lines.

…t_home_fact_on_AIX

(MODULES-2478) Make root_home fact work on AIX using native lsuser command

* Extracts a value from a deeply-nested data structure
* Returns default if a value could not be extracted

Add a new function "try_get_value"

(MAINT) fix up try_get_value acceptance test