Edit desktop entry to comply with Linux standards - Fixes #25

[HEXcube]

Edited svgcleaner.desktop to comply with the Linux standard - freedesktop desktop entry specs and to ensure compatibility with icon themes. The following hardcoded icon path was removed:

Icon=/usr/share/icons/hicolor/scalable/apps/svgcleaner.svg

and replaced with the correct one:

Icon=svgcleaner

It may seem like just a cosmetic change, but standards compliance contributes to quality of the app.

[RazrFalcon]

I used full path, because some times is failed to find icon for some reasons...
Accepted.

[HEXcube]

@RazrFalcon Thanx 4 accepting the commit! 😘 I'll now mark SVGCleaner as 'Fixed' in @Foggalong 's Hardcode Fixer App List. And don't worry about failing to load app icon, coz all well maintained distros comply to freedesktop standards and will load the icon fine.

By the way, will SVGCleaner PPA be updated for Ubuntu 16.04LTS? 😕 The builds in that PPA are like 2 years old now. 😞

[RazrFalcon]

Yep, project kinda dead. I'll try to update ppa, but I don't know if it will built successfully for new versions.

[HEXcube]

I'll try to update ppa

@RazrFalcon That's great! 😇 Besides, SVGCleaner is still the best svg optimizer available natively on Linux. Do you know Numix Project uses svgcleaner-cli in their svgclean script to optimize icons?

[RazrFalcon]

Yep, but there are a lot of work left to do to release new version.