first pass at 'wp super-admin' commmand
stop looking for deprecated wp-cli-blog file

rationale:

- it makes an extra access(2) syscall on each run
- it's been deprecated for many versions
Merge pull request #987 from wp-cli/remove-wp-cli-blog

Stop looking for deprecated wp-cli-blog file
fix notice in find_item_by_key()
add Behat test for #985
Merge remote-tracking branch 'boonebgorges/master'

closes #985
make local plugin lookup case-sensitive

the old lookup method returned false positives on case-insensitive
filesystems

(plugin basenames are treated as case-sensitive by WordPress)

fixes #958
switch to wp-cli/php-cli-tools:dev-master

it contains https://github.com/wp-cli/php-cli-tools/commit/6079f27981a5dd91be6ff9f19643a7278dcdfbbb

which fixes #947
bump version to 0.14.0-beta
fix deploy script

log from Travis CI:

    error: Malformed value for push.default: simple
    error: Must be one of nothing, matching, tracking or current.
always set common HTTP headers; closes #989
Ability to obtain titles and descriptions for plugins and themes using list command.
Merge pull request #993 from sibprogrammer/master

Ability to obtain titles and descriptions for plugins and themes using list command.
switch php-cli-tools to a tag
switch php-cli-tools to 0.9.4-patch46

see #947
map contributors for 0.14 release
bump version to 0.14.0
pass allow-root along in launch_self()

fixes #997
bump version to 0.14.1-alpha
Add `wp role reset` - resets any given default role to default capabilities