ObjectSaveLoader: create class

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branch : develop
ObjectSaveLoader: try to move method openObject()

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branch : develop
Enable C++11 again.

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branch : develop
ObjectSaveLoader: add progress lambda

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branch : develop
Editor does not own object, so it should not delete object.
MainWindow2 takes the responsibility.

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branch : develop
Merge branch 'master' of https://github.com/pencil2d/pencil
Merge with default

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branch : develop
Fix VS2010 compiler error

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branch : develop
Fix VS2010 compiler error, VS2010 has not implemented std::round()

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branch : develop
MainWindow2: fix unstable problem os newDocument(). rename object => m_object

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branch : develop
PencilDef: define constant string PENCIL_WINDOW_TITLE

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branch : develop
MainWindow2: rename saveForce() => saveDocument().

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branch : develop
Fix compiler warning

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branch : develop
1. Remove duplicated shortcuts Ctrl+R, Ctrl+H.
2. Rename shortcuts constatnt CmdResetView => CmdResetZoomRotate

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branch : develop
Merge with develop
Merge pull request #66 from chchwy/master

Nightly build Jul 17 2013