Add "Instagram" app

[matAtWork]

Added tests for Android and iOS strings as seen in the wild, both passing with expected results.

[sunknudsen]

@matAtWork Thanks for the pull request. :) Is there a reason why you used . instead of (space character) to match spaces in your regexes?

@commenthol What’s our policy for additions to .gitignore?

[commenthol]

I have no objection with regards to .gitignore additions.
package-lock.json is ok as it does not hurt - there are no updates published on npm.
/.project is difficult for me to classify as it seams to be something internal. So I would say this could be removed.

[matAtWork]

@sunknudsen - No deep reasoning in using . over . Feel free to update if you prefer.

@commenthol - .project was created by my editor. Again there's no good reason to either include or exclude it from .gitignore, but it's convenient for me personally :)

If you wish me to make and push these changes, let me know, otherwise I'll let you proceed as you see fit.

[sunknudsen]

@matAtWork Please remove .project and we’re good to go. Thanks Mat!

[matAtWork]

Apologies for the delay. .project is now ignored and latest changes pulled. Please let me know if you need me to do anything else.

[sunknudsen]

Thanks @matAtWork. I removed .project from .gitignore as this line is editor-specific. Thanks for your contribution to the project.