osx.aliases: Added Skype alias.
bash_it.sh: Added support for custom.plugins.bash and custom.completion.bash.
completion: Add completion/custom.completion.bash to .gitignore.
Merge pull request #288 from cceleri/hotfix_custom_script_support

Add support for `custom` scripts for all types, not just aliases
Update osx.aliases.bash

Fixed skype typo.
Merge pull request #289 from cceleri/feature_add_skype_alias

osx.aliases: Added Skype alias.
bash_it.sh: Patched changes made to support custom.*.bash files.

Code was added to support loading
custom.{aliases,completion,plugins}.bash from their respective
directories in 46f6701a3. The change made in that commit does not wait
until the enabled {aliases,completion,plugins}/*.bash files are loaded
before sourcing the custom.*.bash files, which was the case before. This
patch fixes any issues caused by that change by loading the enabled
*.bash files and custom *.bash files in two successive for loops.
Add new theme: Iterate
Merge pull request #294 from iterateNZ/iterate_theme

Add new theme: Iterate
Merge pull request #290 from cceleri/hotfix_custom_files

bash_it.sh: Patched changes made to support custom.*.bash files.
Merge remote-tracking branch 'upstream/master'