Adding writeFile logic for "file" plugin
- Added the (most important) `share` function
- Renamed SMS phonenr param to indicate you can pass multiple by separating by a comma
- Renamed all image params to file, because any file can be shared
- Fixed `shareViaEmail`, because it was an unadjusted copy-paste of `shareViaSMS`
- Added `shareVia`
- Added `canShareViaEmail`
- Fixed `canShareVia` (subject was missing)
- Removed some now obsolete TODO's/notes
Merge branch 'master' into plugin_file_writing

Conflicts:
	src/plugins/file.js
Fixing replaceBOOL argument init for backward compatibility
add sms plugin
fixed indent
Adding file metadata reading function to get file infos : size, type, name, lastModifiedDate, ...
Merge pull request #99 from Natsu-/filepath_fixes

Fixing replaceBOOL argument init for backward compatibility
Merge pull request #101 from Natsu-/file_read_metadata

Adding file metadata reading function to get file infos
use promise instead of callback function
rm cb from params
Update README.md
fix comment
Merge pull request #112 from mrzmyr/fix-comment

fix comment
Removing "options" parameter, useless for cordova call
Adding dateToString globalization wrapping
Adding stringToDate globalization wrapping
Adding getDatePattern globalization wrapping + some missing commas
Adding getDateNames globalization wrapping
Adding isDayLightSavingsTime globalization wrapping