Group MMS swipe lock fix

[parksjr]

Simple fix reversing the swipeLocked logic on attachements (always true unless specified false). Tested on Nexus 5 hammerhead. Issue mentioned here: #128

[krille-chan]

Thank you for your contribution :)

[UniversalSuperBox]

@parksjr, is there any specific way you would like to be credited in our changelog for our next release? Would you prefer your username, the real name you have set on GitHub...?

For an example, see the changelog at https://ubports.com/blog/ubports-blog-1/post/call-for-testing-ubuntu-touch-ota-10-238

[parksjr]

@UniversalSuperBox github username is fine, thanks!

@ChristianPauly How does one typically celebrate their first successful PR around here? 🍾 😆

[UniversalSuperBox]

Alright, I can make that happen @parksjr.

Well, if you'd like to celebrate, I can get stickers just about anywhere within the continental US... If you're interested of course. ;)

Other than that, is there anything I can help you find in the project?

[parksjr]

@UniversalSuperBox I am definitely interested in stickers! Nothing I can think of that I need help with right now, but I will certainly reach out if I think of anything. Thanks for the message.

[UniversalSuperBox]

Alright, you can hit me up on Telegram, @UniversalSuperBox, if that's your jam. Or dalton@ubports.com if that is, instead, your jam.