Removed GIT fragments

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Merge pull request #439 from STB3/Marlin-language.h-repair

Removed GIT fragments from language.h
Corrected #endif in language.h
Fixed cardreader.h to resolve issue #440 (Pull Request  #425 missing file)
Merge pull request #441 from bkpsu/Marlin_v1

Fixed cardreader.h to resolve issue #440 (Pull Request  #425 missing file)
Add support for the Sanguinololu Wireless Adapter (SWA).

Extra code is needed beyond setting 'Serial 1' in Configuration.h,
this is provided by SWAConfig.h and SWAConfig.cpp. Appropriate
settings are added to Configuration.h and minimal code is added to
Marlin_main.cpp to bind everything together.