0.28.0

Add a simple API which allows to retrieves NuGet v3 autocomplete
Allow unix-style comments in paket.dependencies file
BUGFIX: paket restore does not fail on missing paket.version files - #600
BUGFIX: Parsing of conditional dependencies should detect portable case - #594
BUGFIX: Prerelease requirements in paket.dependencies should override package dependencies - #607
BUGFIX: Try to ease the pain with mono bug in Process class - #599
BUGFIX: paket restore does not re-download http references - #592
BUGFIX: Make DeletePaketNodes more robust - #591
BUGFIX: Install content files on mono - #561
BUGFIX: Install process doesn't duplicate Imports of targets files any more - #588
COSMETICS: Paket should not reformat app/web.config files while changing assembly redirects - #597
BUGFIX: Don't remove comments from paket.dependencies file - #584