Save issue: some debug messages.

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Merge

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MainWindow2: minor

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Fix compiler warnings

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Editor: move methods openObject(),openRecent to MainWindow2

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Bug fixed: crash problem during file saving/loading.

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ObjectSaveLoader: create class

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ObjectSaveLoader: try to move method openObject()

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Merge pull request #64 from chchwy/master

Fix file saving issue
Improvement: interactive tool resizing

1. previous sizes are kept
2. works on all sizeable tools modes
3. added feather control [CTRL]+drag
Enable C++11 again.

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ObjectSaveLoader: add progress lambda

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

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#5 FIXED ISSUE

Layer checking (for imports) is now corrected.
Fixed black screening (from feather adjustments)
Merge pull request #65 from eVoLuTiVeMEDIA/master

Improvements and some fixes
Merge branch 'master' of https://github.com/pencil2d/pencil
Merge with default

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Fix VS2010 compiler error

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

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branch : develop