add insert group method
add InsertEntry method to PwGroup
add indexed methods for manipulating Associations in AutoTypeConfig
fix comments won't compile in mono
KeePass 2.24
Merge branch 'upstream'
KeePass 2.24

Conflicts:
	Cryptography/CryptoRandom.cs
	PwCustomIcon.cs
	PwUuid.cs
	Serialization/KdbxFile.Read.cs
	Serialization/KdbxFile.Write.cs