(cherry picked from commit 1c4b816)

On 0.7 we now use the __module__ variable from the at-template macro.
The template() and template_hook() function arguments are changed to
accept the calling module as an argument, instead of calling
current_module() themselves.

(cherry picked from commit a5ea25c)

Fixes #42.

(cherry picked from commit 4906c56)

Backports for 0.4.1

(cherry picked from commit 608aa4e)

(cherry picked from commit 1f42a01)

Backports for 0.4.2

(cherry picked from commit 739f356)

Backports for 0.4.3

* Fix 0.7 deprecations

* isabstract -> isabstracttype
* isconcrete -> isconcretetype
* module_name -> nameof

* Compat for Markdown/Pkg stdlib packages

Removes deprecations on Julia 0.7.

(cherry picked from commit 67b2db7)

* contains(haystack, needle) -> occursin(needle, haystack)

* import Compat.LibGit2 to silence some warnings

* MethodTable no longer exported from Core to Base, see JuliaLang/julia/pull/25802

(cherry picked from commit 3fb4c3d)

(cherry picked from commit 6f47a2d)

Backports for 0.4.4

This fixes a deprecation warning on Julia 0.7 and is fully backwards
compatible with 0.6.

(cherry picked from commit a5b18b4)

Rather than removing the value of `Pkg.dir()`, we remove the first
matching entry in `DEPOT_PATH`, if any.

(cherry picked from commit a12c223)

(cherry picked from commit 8c779b2)

Backports for 0.4.5