don't blow away original PERL5LIB
Merge branch 'develop' of git://github.com/gugod/App-perlbrew into feature-dev_build_lib_aware
Merge branch 'release/0.36' into develop
Refactor system() call to improve mockability

Refactored the system() call in do_install_this() to allow for easier
testing that method without actually invoking a build of perl.
Add sitecustomize option

This commit adds the --sitecustomize option to allow users to specify a
sitecustomize.pl to be installed when Perlbrew builds a perl. This is
helpful because sitecustomize.pl can be used (among other things) for
dynamic modifications to @INC.  The option sets -Dusesitecustomize and
copies the specified file to the newly built $Config{sitelib}.

The commit also adds Capture::Tiny as a prerequisite to allow for
capturing via do_system() instead of using qx//, which allows sufficient
mockability to test the behavior of sitecustomize without actually
building a Perl.
Merge pull request #176 from dagolden/sitecustomize

sitecustomize feature
Document --sitecustomize option

Also fixes a --force typo
Merge pull request #177 from dagolden/sitecustomize-docs

Document --sitecustomize option
Merge branch 'develop' of github.com:gugod/App-perlbrew into develop
Use 0 instead of $[
Merge pull request #178 from jwittkoski/topic/remove-array-base

Use 0 instead of $[
Merge branch 'develop' of github.com:gugod/App-perlbrew into develop
Merge branch 'develop' of git://github.com/gugod/App-perlbrew into feature-dev_build_lib_aware
reset local lib when switching env
Merge pull request #180 from kmcgrath/feature-reset-locallib

reset local::lib on multiple use
Merge branch 'develop' of github.com:gugod/App-perlbrew into develop
releasing
Merge branch 'release/0.37'
Merge branch 'release/0.37' into develop
Simplify option detection in Bash perlbrew function