Fixed issue #33
Generated variable names now follow the pattern a..z, aa..zz, aaa..zzz, etc.
Fixed issue #25
Corrected the capitalization of the "Project notes..." menu item
Updated Czech translation
Fixed #29
Corrected the capitalization of the "add a new sprite" tooltip
Added help screens
Added "Delete a variable" help screen
Fixed #22
Added a "help..." item to the context menus of the "Make a variable," "Delete a variable," and "Make a block" buttons which displays the appropriate help screen
Fixed #41
Dragging morphs will no longer throw a TypeError.
Fixed #47
Export picture of all scripts

* new entry in the ScriptsMorph's userMenu lets you export a picture of
all scripts, including comments.

* place sticky comments on World layer on dragging their anchor block,
fixes both #8 and #18

* additional settings for developing the backend
Merge pull request #35 from queryselector/issue-33

Fixed #33
Merge pull request #36 from queryselector/issue-25

Fixed #25
Merge pull request #37 from queryselector/issue-29

Fixed #29
Merge pull request #40 from queryselector/issue-22

Fixed #22
Merge pull request #42 from queryselector/issue-41

Fixed #41
Merge pull request #48 from queryselector/issue-47

Fixed #47