Remember flagged state when searching on moderation pages; Fixes #181
Finish off #489 for searching on some moderation pages

* Apparently flagged true form variable is carried over between tabs/refreshes so remove it when not on a flagged query
* Resolve incremental form variable by moving `isFlagged` into conditional
* Stray trailing comma in object fix
* Remove some dead code
* Some STYLEGUIDE.md conformance with missing braces and newlines, and some strict equality test *(still one left in this file but not testing there yet)*
* Tested non-flagged routes and checks okay

Closes #181
Change `placeholder` attribute for flagged items

Applies to #181, #489 and implemented in #491

See also request at https://github.com/OpenUserJs/OpenUserJS.org/issues/181#issuecomment-65947344
Merge pull request #491 from Martii/Issue-181FixSomeModSearching

Issue 181 fix some mod searching

Auto-merge ... confirmation of theory versus test results... this is a fix and generating a new refactor issue.