Standarize capitalization of Settings menu entry to System updates

Change "System Updates" to "System updates" to match the standard
styling of settings

Change-Id: Ifeaaa684652ce0c5b6783310afedc4deb30e0a38
OpenDelta: SV translations

Change-Id: Iaf9940c028980fd517c283d66031ac922b815003
OpenDelta: Add launcher shortcut

The requested shortcut in Settings is not possible
so let's do it this way.
http://jira.omnirom.org/browse/CONCEPT-15

Change-Id: I07cbe8e194795b074c24dbf1d85d829c5b967420
Pass in the source buffer size depend on the input file size

the xdelta might produce huge output if the difference is bigger than
32MB, half of the default buffer size 64MB.[1]

xdelta author suggested nearest power of 2. [2]

[1] http://code.google.com/p/xdelta/wiki/TuningMemoryBudget#Source_buffer_size
[2] http://code.google.com/p/xdelta/issues/detail?id=175

Change-Id: Id4f277373d088986fc314c386b269d0bddfcdd07
Merge "OpenDelta: SV translations" into android-4.4
Merge "Pass in the source buffer size depend on the input file size" into android-4.4
OpenDelta: Update RU translations

Change-Id: I352e35ae5ae45955a0710af58b54609035b10cf1
Merge pull request #2 from omnirom/android-4.4

fg