File utils refactoring

After Ernir merged the two FileUtils implementations I realised two of the three methods are no longer needed and the third can just be a static method, like StringUtils etc.

This patch also fixes a layout problem with PasswordActivity on the Galaxy Nexus - the progress wheel was showing up in the wrong place. (You need a slow phone to notice!)

See merge request !12

Removed methods that are no longer needed for Java 6, moved the remaining method into the utils directory.

Removed methods that are no longer needed for Java 6, moved the remaining method into the utils directory.

Improve how the status of messages is indicated.

Remove the Toast that always says 'Message Sent' and show graphical
indicators instead that show either:
* message is waiting to be sent
* message was sent (or requested to be sent)
* message was delivered

Please note that I didn't change the icons and did not migrate the UI to XML files to keep my change minimally invasive.

Closes #46

See merge request !9

Remove the Toast that always says 'Message Sent' and show graphical
indicators instead that show either:
* message is waiting to be sent
* message was sent (or requested)
* message was delivered

40 forgotten password

* Moved the UI definition over to XML and added the forgotten password button
* Code encapsulation in a new Base activity also enabling re-use between activities/fragments 

Closes #40 

See merge request !10

Merge branch '40-forgotten-password' of https://code.briarproject.org/akwizgran/briar into 40-forgotten-password

Conflicts:
	briar-android/res/values/strings.xml
	briar-tests/src/org/briarproject/plugins/file/RemovableDrivePluginTest.java

Don't mix JUnit 4's @Test with JUnit3's TestCase.

This is the world's most boring merge request. Android Studio was complaining about using JUnit 4's @Test annotations with JUnit 3's TestCase, so I fixed it.

Most of the changes come from Android Studio organising imports in a different order from Eclipse.

See merge request !8

Create hidden service in a subdirectory. #161

The permissions for the parent directory are too permissive (775) for Tor 0.2.7.5. Store the hidden service hostname and private key in a subdirectory with permissions 700.

See merge request !5

Conflicts:
	.gitignore
	briar-android/briar-android.iml

improved git ignore

closes #160 

See merge request !4

Merge branch '160-improve-gitignore' of https://code.briarproject.org/akwizgran/briar into 160-improve-gitignore

Conflicts:
	.gitignore

Touching startup failure notification now shows details

The text of the startup failure notification is unhelpful due to lack of
space. Touching the notification now launches an activity that gives details
of the problem and what can be done about it.

Closes #38

See merge request !7

Build with SDK 23, continue to target SDK 22. #162

This will allow people to download Android Studio, check out and build the project without extra steps. Compiling with the latest SDK is recommended even if your target is older (as ours is).

See merge request !6

H2 was failing to load its driver class on OpenJDK 6 because the code was compiled for Java 7.

The text of the startup failure notification is unhelpful due to lack of
space. Touching the notification now launches an activity that gives details
of the problem and what can be done about it.

Closes #38

Show setup page error messages by the relevant text box

Closes #159 

See merge request !3

Hide password strength meter when confirming password

Closes #100

I opted to hide the strength meter because:

* more extensive changes would have been required to set the strength meter to 100% red.
* IMHO it would lead to confusion as to the meaning of the strength meter.
* the "passwords do not match" error should eventually become a proper error of the confirm EditText, not a separate label.

See merge request !2

Clear the password field if wrong password is entered

Closes #150

See merge request !1

The permissions for the parent directory are too permissive (775) for Tor 0.2.7.5. The subdirectory is created with permissions 700.