Commit for the PR

The pull request targets:

	1) Introduces Gradle support
	2) Updates maven support (even thou the apk generated is not
stable)
	3) Updates the setup_env.* scripts to support different building
tools
	4) Removes non UTF-8 characters
	5) Removes switches on R.id entries (not supported anymore from
ADT >= 14)
	6) Introduced a binary dependency (.aar) that replace the actionbarsherlock
sub-module

Remainders:

	1) Change the sub-module back to the owncloud android library
once the PR will be merge
Merge remote-tracking branch 'theirs/develop' into gradleWithInternalDependency

Conflicts:
	owncloud-android-library
	pom.xml
Readded git link that was erraneously removed by the rebase
Commit for the PR

The pull request targets:

	1) Introduces Gradle support
	2) Updates maven support (even thou the apk generated is not
stable)
	3) Updates the setup_env.* scripts to support different building
tools
	4) Removes non UTF-8 characters
	5) Removes switches on R.id entries (not supported anymore from
ADT >= 14)
	6) Introduced a binary dependency (.aar) that replace the actionbarsherlock
sub-module

Remainders:

	1) Change the sub-module back to the owncloud android library
once the PR will be merge
Readded git link that was erraneously removed by the rebase
Merge branch 'gradleWithInternalDependency' of github.com:owncloudChalmers/android into gradleWithInternalDependency

Conflicts:
	setup_env.sh
Fix Linux setup script
Minor updates
Update Gradle plugin to 0.14 for compatibility with Android Studio 0.9.0
Update submodule
Include impelementation of Storage Access Framework when device is KITKAT or over
Add workaround for Drive app in which a creation of a temporal copy is needed
Modify kitkat document provider implementation in order to cover all 'content://' cases
Create static var for defining 'content://' String into FileDisplayActivity and delete some unnecessary comments
Get file mimeType and pass it for being checked on UploadFileOperation class. Take into account if file extension comes in content Uri
Merge remote-tracking branch 'theirs/develop' into develop
[tx-robot] updated from transifex
[tx-robot] updated from transifex
Refactoring to avoid maintenance after CR
Merge branch 'develop' into nea_upload_files