Merge pull request #27 from amcgowanca/7.x-dev

Core: hook_variables() initial implementation
Merge pull request #28 from amcgowanca/7.x-dev

On-going development, revised .install hooks and documentation.
Merge pull request #29 from amcgowanca/7.x-dev

Implemeted imagex_drupal_is_installing()
Merge pull request #30 from amcgowanca/7.x-dev

Not Ready: On-going dev due to Syndication build
Hotfix: imagex_default_mode -> imagex_mode_default typo fix
Merge pull request #32 from thomjjames/hotfix/imagex_mode_default

Hotfix: imagex_default_mode -> imagex_mode_default typo fix
Merge branch '7.x-dev' of github.com:amcgowanca/imagex into 7.x-dev
Added function imagex_get_current_full_path().