Use toasts to notify the user after submission.
Prevent accidentally closing the feedback dialog.
Merge pull request #23 from learning-layers/improvement/feedback-dialog

Feedback dialog improvements.
Add an example for secrets.xml.

The file needs to be hidden since that's the only way to avoid
duplicate resource errors.
Merge pull request #24 from learning-layers/improvement/secrets-xml

Add an example for secrets.xml.
The `runProguard` key is now `minifyEnabled`.
Add Simple XML dependency.
Use Java 7.
Remove unused resources.
Remove legacy JAR dependencies.
[REBASE] Palikka mega commit.
Contextual action bar
Merge branch 'feature/palikka' into improvement/LL-831

Conflicts:
	app/build.gradle
	app/src/main/java/fi/aalto/legroup/achso/activity/MainActivity.java
	app/src/main/java/fi/aalto/legroup/achso/activity/SearchActivity.java

app/src/main/java/fi/aalto/legroup/achso/activity/VideoPlayerActivity.ja
va

app/src/main/java/fi/aalto/legroup/achso/adapter/VideoBrowserGridAdapter
.java

app/src/main/java/fi/aalto/legroup/achso/adapter/VideoBrowserTabAdapter.
java
	app/src/main/java/fi/aalto/legroup/achso/database/LocalRawVideos.java
	app/src/main/java/fi/aalto/legroup/achso/database/SemanticVideo.java
	app/src/main/java/fi/aalto/legroup/achso/database/VideoDBHelper.java

app/src/main/java/fi/aalto/legroup/achso/fragment/VideoBrowserFragment.j
ava
	app/src/main/java/fi/aalto/legroup/achso/helper/SettingsHelper.java
	app/src/main/java/fi/aalto/legroup/achso/helper/VideoHelper.java
	app/src/main/java/fi/aalto/legroup/achso/util/App.java
	app/src/main/res/layout/activity_main.xml
	app/src/main/res/layout/activity_search.xml
	app/src/main/res/layout/activity_video_player.xml
	app/src/main/res/layout/fragment_video_browser.xml
	app/src/main/res/layout/item_video_browser_grid.xml
	app/src/main/res/values/arrays.xml
	app/src/main/res/values/strings.xml
	gradle/wrapper/gradle-wrapper.properties